### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION IX AIR DIVISION

Technical Support Document

for EPA’s Proposed Rulemaking

for the Arizona State Implementation Plan : New or Amended Rules from Arizona Administrative Code, Title 18, Chapter 2, Articles 1, 2, 6, and 7 Prepared by: Christine Vineyard , Laura Yannayon , and Jeff Wehling May 30 , 20142

Submittal Date s : July 15, 1998 and July 28, 2011 , as supplemented on May 16, 2014 and

October 29, 2012 , as supplemented on September 6, 2013 On July 15, 1998, ADEQ submitted a n update to rules codified in A rticles 6 (Emissions from Existing and New Nonpoint Sources), 7 (Existing Stationary Source Performance Standards), and 8 [Em issions from Mobile Sources (New and Existing)] of Arizona Administrative Code (AAC) , title 18 (Environmental Quality), chapter 2 (Department of Environmental Quality Air Pollution Control). There were a total of 47 rules submitted on July 15, 1998 . Of the se, EPA has taken action on 10 . In addition, EPA has taken action on f our of the rules as later amended and re - submitted to EPA. On July 28, 2011 , ADEQ submitted an update to certa in rules codified in A rticles 1 through 7 and thereby superseded a further 18 rules submitted on July 15, 1998. The rules submitted on July 28, 2011 include generally - applicable rules and source - category - specific prohibitory and work practice rules, as well as certain rules that relate partially or entirely to the New Source Review (NSR) permitting program. 1 A number of the rules submitted on July 28, 2011 were subsequently superseded by further amended rules submitted on October 29, 2012. The SIP submittal dated October 29, 2012 includes two statutory provisions and 40+ rul es that represent an update to Arizona’s NSR permitting program . Some of the NSR provisions submitted on October 29, 2012 are solely permit - related while others are both permit - related but also more generally applicable for SIP purposes. On September 6, 20 13, ADEQ submitted supplement information to the October 29, 2012 NSR SIP submittal including certified copies of the rules and statutes that were included in the original 2012 submittal. Lastly, on March 16, 2014, ADEQ submitted a supplement to the July 15, 1998 and July 28, 2011 submittals. ADEQ’s March 16, 2014 supplement included more recent codifications of some of the rules that had been submitted earlier and included an additional statutory provision (ARS 49 - 426) and certain additional rules (R18 - 2 - 204, R18 - 2 - 311, R18 - 2 - 312, appendix 9, and the Arizona Testing Manual) that had been referenced in previously - submitted rules but not originally included. ADEQ’s March 16, 2014 supplement also withdrew two previously submitted rules (R18 - 2 - 609 and R18 - 2 - 7 09, which had been submitted on July 15, 1998) and requested rescission of R9 - 3 - 218 (“Violations”) and R9 - 3 - 509 (“Standards of Performance for Existing Petroleum Refineries”) from the existing SIP. This TSD covers (1) the remaining 1 3 rules submitted on J uly 15, 1998 on which EPA has not already taken action on (either directly or as amended) or that have not superseded or withdrawn ; (2) the rules submitted on July 28, 2011 that were not superseded by the further amended versions of the same rules on Octob er 29, 2012; (3) the rules submitted on October 29, 2012 that superseded the earlier - submitted rules ; (4) and the other rules submitted on October 29, 2012 that are more generally applicable, including Article 1 (i.e., R18 - 2 - 101 et seq ), Article 2, and Art icle 7 series rules. A separate TSD is being prepared for a separate rulemaking on the permitting - specific rules found in the Article 3, Article 4, and Article 5 series of rules (as well as a few permitting related definitions in R18 - 2 - 101 and two permitti ng - related Article 2 rules) submitted on July 28, 2011 and October 29, 2012.

1 The July 28, 2011 submittal included two versions of R18 - 2 - 703 and R18 - 2 - 715. EPA considers the earlier amended versions of the rules to be superseded by the latter amended versions of the rules, and is taking action only on the latter.3

The fo llowing table lists the statutes and rules submitted on July 15, 1998 and July 28, 2011 , as supplemented on May 16, 2014, and October 29, 2012 , as supplemented on September 6, 2013 and shows the allocation between this TSD (and related rulemaking) and the future NSR - permitting - related TSD (and related rulemaking) . Submitted rules that have been superseded by subsequently su bmitted rules are shown in strikethrough te xt.

Submittal Dated July 15, 1998 , as supplemented on May 16, 2014 Submittal Dated July 28, 2011 , as supplemented on May 16, 2014 Submittal

Dated October 29, 2012 , as supplemented on September 6, 2013 Addressed in

this TSD and Related Rulemaking Addressed in

Separate Permitting Related TSD and Related Rulemaking ARS 49 - 402 ARS 49 - 402 ARS 49 - 426(A), (B), (C), (E)(2), (F), (G), (H), (K), (L), (N), (O), and (P) ARS 49 - 426(F) ARS 49 - 426(A), (B), (C), (E)(2), (G), (H), (K), (L), (N), (O), and (P) ARS 49 - 426(F)

R18 - 2 - 101 R18 - 2 - 101 R18 - 2 - 101 (excluding definitions (2), (20), (32), (87), (109), and (122) R18 - 2 - 101

( definitions (2), (20), (32), (87), (109), and (122) R18 - 2 - 102 R18 - 2 - 102 R18 - 2 - 201 R18 - 2 - 201 R18 - 2 - 201 R18 - 2 - 202 R18 - 2 - 202 R18 - 2 - 202 R18 - 2 - 203 R18 - 2 - 203 R18 - 2 - 203 R18 - 2 - 204 R18 - 2 - 204

R18 - 2 - 205 R18 - 2 - 205 R18 - 2 - 206 R18 - 2 - 206 R18 - 2 - 210 R18 - 2 - 210 R18 - 2 - 210

R18 - 2 - 215 R18 - 2 - 215 R18 - 2 - 216 R18 - 2 - 216 R18 - 2 - 216

R18 - 2 - 217 R18 - 2 - 217 R18 - 2 - 218 R18 - 2 - 218 R9 - 3 - 218 (delete without replacement) R9 - 3 - 218 (delete without replacement) Appendix 2 Appendix 2 Appendix 10 (delete without replacement) Appendix 10 (delete without replacement) Arizona Testing Manual for Air Pollutant Emissions, Arizona Testing Manual for Air Pollutant Emissions,4 Revision F, March 1992, Sections 1 and 7 Revision F, March 1992, Section 1; Section 7 deferred R18 - 2 - 301 R18 - 2 - 301 R18 - 2 - 302 R18 - 2 - 302 R18 - 2 - 302.01 R18 - 2 - 302.01 R18 - 2 - 303 R18 - 2 - 303 R18 - 2 - 304 R18 - 2 - 304 R18 - 2 - 306 R18 - 2 - 306 R18 - 2 - 306.01 R18 - 2 - 306.01 R18 - 2 - 306.02 R18 - 2 - 306.02 R18 - 2 - 310.01 R18 - 2 - 310.01 R18 - 2 - 311 R18 - 2 - 311 R18 - 2 - 312 R18 - 2 - 312

R18 - 2 - 315 R18 - 2 - 315 R18 - 2 - 316 R18 - 2 - 316 R9 - 3 - 319 (delete w/out replacement) R9 - 3 - 319 (delete w/out replacement) R9 - 3 - 322 (delete w/out replacement) R9 - 3 - 322 (delete w/out replacement) R18 - 2 - 319 R18 - 2 - 319 R18 - 2 - 320 R18 - 2 - 320 R18 - 2 - 321 R18 - 2 - 321 R18 - 2 - 323 R18 - 2 - 323 R18 - 2 - 323

R18 - 2 - 330 R18 - 2 - 330 R18 - 2 - 332 R18 - 2 - 332 Appendix 4 (delete w/out replacement) Appendix 4 (delete w/out replacement) Appendix 5 (delete w/out replacement) Appendix 5 (delete w/out replacement) R18 - 2 - 401 R18 - 2 - 401 R18 - 2 - 401

R18 - 2 - 402 R18 - 2 - 402 R18 - 2 - 403 R18 - 2 - 403 R18 - 2 - 404 R18 - 2 - 404 R18 - 2 - 405 R18 - 2 - 405 R18 - 2 - 406 R18 - 2 - 406 R18 - 2 - 407 R18 - 2 - 407 R18 - 2 - 409 R18 - 2 - 409 R18 - 2 - 412 R18 - 2 - 412 R18 - 2 - 502 R18 - 2 - 5025 R18 - 2 - 503 R18 - 2 - 503 R18 - 2 - 504 R18 - 2 - 504 R18 - 2 - 505 R18 - 2 - 505 R18 - 2 - 509 R18 - 2 - 509

R18 - 2 - 512 R18 - 2 - 512 R18 - 2 - 513 R18 - 2 - 513 R18 - 2 - 601 R18 - 2 - 601 R18 - 2 - 602 – Approved as amended at 71 FR 28270 (May 16, 2006) R18 - 2 - 603 – Repealed; replaced by Article 15 rules, which were approved at 71 FR 28270 (May 16, 2006) R18 - 2 - 604 R18 - 2 - 604 R18 - 2 - 605 R18 - 2 - 605 R18 - 2 - 606 R18 - 2 - 606 R18 - 2 - 607 R18 - 2 - 607 R18 - 2 - 608 R18 - 2 - 608 R18 - 2 - 608 R18 - 2 - 609 – withdrawn May 16, 2014 R18 - 2 - 610 – Re - codified as R18 - 2 - 614 R18 - 2 - 61 4 R18 - 2 - 701 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 701 R18 - 2 - 701 R18 - 2 - 702 - Approved as amended at 69 FR 51952 (August 24, 2004) R18 - 2 - 703 R18 - 2 - 703 R18 - 2 - 703 R18 - 2 - 704 R18 - 2 - 704 R18 - 2 - 704 R18 - 2 - 705 Deferred R18 - 2 - 706 R18 - 2 - 706 R18 - 2 - 707 R18 - 2 - 707 R18 - 2 - 708 R18 - 2 - 708 Deferred R18 - 2 - 709 – withdrawn May 16, 2014 R9 - 3 - 509 (delete without replacement) R9 - 3 - 509 (delete without replacement) R18 - 2 - 710 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 711 R18 - 2 - 711 Deferred R18 - 2 - 712 R18 - 2 - 712 Deferred R18 - 2 - 713 R18 - 2 - 713 Deferred R18 - 2 - 714 R18 - 2 - 7146

R18 - 2 - 715 – Subsections F, G, and H approved as amended at 69 FR 63321 (November 1, 2004) R18 - 2 - 715 R18 - 2 - 715 Paragraphs (F) through (H); Defer paragraphs (A) through (E) R18 - 2 - 715.01 - Approved as amended at 69 FR 63321 (November 1, 2004) R18 - 2 - 715.02 – Approved at 69 FR 63321 (Nov ember 1, 2004) R18 - 2 - 716 R18 - 2 - 716 Deferred R18 - 2 - 717 R18 - 2 - 717 Deferred R18 - 2 - 718 R18 - 2 - 718 (repeal; i.e. R9 - 3 - 518 (delete without replacement) R18 - 2 - 718 (repeal; i.e. R9 - 3 - 518 (delete without replacement) R18 - 2 - 719 R18 - 2 - 719 R18 - 2 - 719 R18 - 2 - 7 20 R18 - 2 - 720 R18 - 2 - 720 R18 - 2 - 721 R18 - 2 - 721 Deferred R18 - 2 - 722 R18 - 2 - 722 Deferred R18 - 2 - 723 R18 - 2 - 723 R18 - 2 - 724 R18 - 2 - 724 R18 - 2 - 724 R18 - 2 - 725 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 726 R18 - 2 - 726 R18 - 2 - 727 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 728 R18 - 2 - 728 R18 - 2 - 729 R18 - 2 - 729 R18 - 2 - 729 R18 - 2 - 730 R18 - 2 - 730 R18 - 2 - 730 R18 - 2 - 732 R18 - 2 - 732 R18 - 2 - 801 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 802 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 803 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 804 – Approved at 68 FR 14151 (March 24, 2003) R18 - 2 - 805 – Approved at 68 FR 14151 (March 24, 2003) Appendix 9 Deferred7 Appendix 11 (delete w/out replacement) Appendix 11 (delete w/out replacement) Submitted Statutes and Rules : Arizona Revised Statutes, Title 49 (“ The Environment ”), Chapter 3 (“Air Quality”), Article 1 (“General Provisions”) Section 49 - 402 (“

State and County Control ”) Most recent amendments were promulgated by the Legislature in 2002. The Governor approved th e amended statute on April 30, 2 002. The October 29, 2012 SIP submittal states that ARS section 49 - 402 is being submitted for approval into the SIP, but the statute was inadvertently omitted from the submittal package ; however, ADEQ included ARS 49 - 402 to EPA in the supplemental SIP submittal dated September 6, 2013. The existing version of ARS 49 - 402 (“S tate and County Control ”) in the SIP was a pproved on June 8, 2000 (65 FR 36353). Section 49 - 4 26 (“

Permits; duties of director; exceptions; applications; objections; fees” ) Most recent amendments were promulgate d by the Legislature in 1997. ARS section 49 - 426 was included in the May 16, 2014 supplement to the July 28, 2011 SIP submittal. ADEQ submitted only paragraphs (A), (B), (C), (E)(2), (F), (G), (H), (K), (L), (N), (O), and (P) for approval into the SIP. Th e excluded paragraphs are related to title V program requirements and need not be included in the SIP. The existing SIP version of this statute is ARS 36 - 1707.1 (“Permits; Exceptions; Applications; Fees”), which was a pproved on June 1 8, 1982 ( 47 FR 26382 ). A rizona Administrative Code , Title 18 (“Environmental Quality”), Chapter 2 (“Department of Environmental Quality – Air Pollution Control”) , Article 1 (“General”) R18 - 2 - 101 (“

Definitions ”) Most recent amendments became effective August 7, 2012 ; submitted on October 29, 2012. Many of the definitions in R18 - 2 - 101 would be new to the SIP. The previously - approved definitions from R9 - 3 - 101 were s ubmitted and approved on various dates and in various rulemakings. More specifically, most of the previously approved definitions included in R18 - 2 - 101 were most recently submitted on June 3, 1982 and approved into the SIP on September 28, 1982 (47 FR 42572) or May 3, 1983 (48 FR 19878). One of the definitions submitted in R18 - 2 - 101 (“Act”) was most recently submitted on January 4, 1979 and approved on May 5, 1982 (47 FR 19326). ”S tationary source” w as most recently submitted on January 16, 2004 and approved on August 24, 2004 (69 FR 51952). A separate spreadsheet has been developed to show the sequence of approvals of R9 - 3 - 101 and the related supersession of definitions as approved into the Arizona SIP. R18 - 2 - 102 (“

Incorporated Materials ”) Most recent amendments became effective August 7, 2012; submitted on October 29, 2012. The rule incorporates by reference sections 1 and 7 of the Department’s Arizona Testing Manual for Air Pollutant Emissions,” amended as of March 1992; ASTM test methods; and U.S. GPO’s “Standard Industrial Classification Manual, 1987.” There is no corresponding rule in the existing SIP; however, EPA approved section 1 of the Arizona Testing Manual at 47 FR 17485 ( April 23, 1982 ) . A rizona Administrative Code , Title 18 (“Environmental Quality”), Chapter 2 (“Department of Environmental Quality – Air Pollution Control”) , Article 2 (“Ambient Air Quality Standards; Area Designations; Classifications”)8

R18 - 2 - 201 (“

Particulate M atter: PM 10 and PM 2.5 ”) Most recent amendments became effective August 7, 2012; submitted October 29, 2012. The rule, as amended, updates the particulate matter ambient air quality s tandards to reflect EPA regulations at 40 CFR 50.6 and 50.13 . The corresponding provision in the existing SIP i s R9 - 3 - 201 (“ Particulate Matter ), a pproved on October 19, 1984 (49 FR 41026). R18 - 2 - 202 (“

Sulfur O xides ( S ulfur D ioxide) ”) Most recent amendments became effective August 7, 2012; submitted October 29, 2012. The rule, as amended, updates the SO 2 ambient air quality standards to reflect EPA regulations at 40 CFR 50.5 and 50.17. The amended rule also provides for the revocation of the annual and 24 - hour primary SO 2 standards. The corresponding provision in the existing SIP is R9 - 3 - 202 (“ Sulfur Oxide (Sulfur Dioxide) ”), a pproved on October 19, 1984 (49 FR 41026). R18 - 2 - 203 (“

Ozone: One - hour S tandard and Eight - hour A verage S tandard ”) Most rec ent amendments became effective August 7, 2012; submitted October 29, 2012. The rule, as amended, updates the ozon e ambient air quality standard s to reflect EPA regulations at 40 CFR 50.15. The existing provision in the existing SIP is R9 - 3 - 204 (“ Ozone ”), a pproved on October 19, 1984 (49 FR 41026) . R18 - 2 - 20 4 (“

Carbon monoxide ”) Most recent amendments became effective September 26, 1990 ; included in the May 16, 2014 supplement to the SIP revision submitt al dated July 28, 2011 . The rule, as amended, updates the carbon monoxide standards to reflect EPA regulations at 40 CFR 50. 8(c) and (d) . The existing provision in the existing SIP is R9 - 3 - 20 5 (“ Carbon monoxide” ), a pproved on October 19, 1984 (49 FR 41026) . R18 - 2 - 20 5 (“

Nitroge n Oxides (Nitrogen Dioxide) ”) Most recent amendments became effective August 7, 2012; submitted October 29, 2012. The rule, as amended, updates the NO 2 ambient air quality standards to reflect EPA regulations at 40 CFR 50.11. The corresponding provision in the existing SIP is R9 - 3 - 206 (“ Nitrogen Dioxide ”), a pproved on October 19, 1984 (49 FR 41026). R18 - 2 - 20 6 (“

Lead ”) Most recent amendments became effective August 7, 2012; submitted October 29, 2012. The rule, as amended, updates the lead ambient air quality standards to reflect EPA regulations at 40 CFR 50.16 and provides for the revocation of the original lead ambient air quality standard set forth at 40 CFR 50.12. The corresponding provision in the existing SIP is R9 - 3 - 207 (“ Lead ”), a ppr oved on October 19, 1984 (49 FR 41026). R18 - 2 - 210 (“

Attainment, Nonattainment, and Unclassifiable Area Designations”) Most recent amendments became effective August 7, 2012; submitted October 29, 2012. This rule incorporate s by reference EPA’s area design ations for Arizona in 40 CFR 81.303 as of July 1, 2011 . There is no corresponding provision in the existing SIP. R18 - 2 - 215 (“Ambient air quality monitoring methods and procedures”) Most recent amendments became effective September 26, 1990; submitted on O ctober 29, 2012. This rule establishes generally applicable requirements with respect to methods and procedures for monitoring ambient air quality. The amended rule refers to 40 CFR part 58 rather than the Arizona Testing Manual for applicable quality assu rance, monitor siting, and sample probe installation9

procedures. The corresponding provision in the existing SIP is R9 - 3 - 215 (“Ambient air quality monitoring methods and procedures”), a pproved on October 19, 1984 (49 FR 41026). R18 - 2 - 216 (“

Interpretation of Ambient Air Quality Standards ”) Most recent amendments became effective March 7, 2009; submitted on July 28, 2011 . The amended rule is essentially the same as the existing SIP rule, which is R9 - 3 - 216 (“ Interpretation of Ambient Air Quality Standards and Evaluation of Air Quality Data”) , paragraph (A), a pproved on April 23, 1982, 47 FR 17483 . R 9 - 3 - 21 8 (“ Violations ”) (Rescission) ADEQ requested rescission of this rule from the SIP in the May 16, 2014 supplement to the July 28, 20 11 SIP submittal. ADEQ repealed the newer version of the rule, R18 - 2 - 219 (“Violations”), effective for State law purposes on August 7, 2012. We last approved R9 - 3 - 218 on October 19, 1984, 49 FR 41026. Appendix 2 (“ Test Methods and Protocols ”) Most recent amendments became effective October 3, 2005 ; submitted on July 28, 2011. Appendix 2 would be new to the SIP. Appendix 10 (“

Evaluation of Air Quality Data ”) (Rescission) ADEQ requested rescission of this rule from the SIP in the July 28, 2011 SIP submittal. ADEQ repealed appendix 10, effective for State law purposes on March 7, 2009 . Existing SIP appendix 10 includes paragraphs submitted on January 4, 1979, July 17, 1980, and July 13, 1981 that were approved on April 23, 1982 at 47 FR 17483 . Arizona Testing Manual for Air Pollutant Emissions R18 - 2 - 101(17) defines “Arizona Testing Manual” to include only sections 1 and 7, and ADEQ included sections 1 and 7 of the Arizona Te sting Manual (Revision F, March 1992) in the May 16, 2014 supplement to the July 28, 2011 SIP submittal. A previous version of section 1 was approved into the SIP; section 7 would be new. Also included in the SIP are various EPA test methods and performanc e specifications from 40 CFR part 60, appendices A and B. Based on EPA’s action at 47 FR 17485 (April 23, 1982), the approved version of the Arizona Testing Manual includes only three sections: section 1.0 (“Arizona Source Test Policy”), 1.1 Source Test Qu alification, 1.2 Source Test Planning and Approval, 1.3 Quality Assurance Provisions, and 1.4 Data Collection and Evaluation ; section 3 = 40 CFR part 60, appendix A, methods 1 through 17, 19, and 20; and section 4, 40 CFR part 60, appendix B, performance s pecifications 1, 2, and 3. A rizona Administrative Code , Title 18 (“Environmental Quality”), Chapter 2 (“Department of Environmental Quality – Air Pollution Control”) , Article 6 (“Emissions from Existing and New Nonpoint Sources”) R18 - 2 - 60 1 (“

General ”) Th e most recent amendments became effective November 15, 1993 ; submitted on July 15 , 1998 , and then re - submitted as currently codified on May 16, 2014 . The rule was renumbered and updated to reflect the recodification of article 4 as article 6 . It contains a n obsolete reference to AAC title 9, chapter 3, article 8, which is now codified at AAC title 18, chapter 2, article 9. The corresponding rule in the existing SIP is R9 - 3 - 40 1 (“ General ”), approved o n April 23, 1982 (47 FR 17483). R18 - 2 - 60 4 (“

Open areas, dry washes or riverbeds ”)10

The most recent amendments became effective November 15, 1993 ; submitted on July 15 , 1998 , and then re - submitted as currently codified on May 16, 2014 . The rule was renumbered and a statutory reference was updated . The correspond ing rule in the existing SIP is R9 - 3 - 40 4 (“ Open areas, dry washes or riverbeds ”), approved on October 19, 1984 (4 9 FR 1 41026 ). R18 - 2 - 60 5 (“

Roadways and streets ”) The most recent amendments became effective November 15, 1993 ; submitted on July 15 , 1998 , and then re - submitted as currently codified on May 16, 2014. The corresponding rule in the existing SIP is R9 - 3 - 405 (“Roadways and streets”), approved on April 23, 1982 (47 FR 17483). R18 - 2 - 60 6 (“

Material handling ”) The most recent amendments became effective November 15, 1993 ; submitted on July 15 , 1998 , and then re - submitted as currently codified on May 16, 2014 . The corresponding rule in the existing SIP is R9 - 3 - 406 (“Material handling”), approved on April 23, 1982 (47 FR 17483). R18 - 2 - 60 7 (“

Storage piles ”) The most recent amendments became effective November 15, 1993 ; submitted on July 15 , 1998 , and then re - submitted as currently codified on May 16, 2014 . The corresponding rule in the existing SIP is R9 - 3 - 407 (“St orage piles”), approved on April 23, 1982 (47 FR 17483). R18 - 2 - 608 (“

Mineral Tailings ”) The most recent amendments became effective March 7 , 2009 ; submitted on July 28, 2011. The rule was amended to include the language “or own or otherwise operate” to cl arify that pollution control measures should continue after the construction of mineral tailings piles and for times when tailings piles are inactive . The corresponding rule in the existing SIP is R9 - 3 - 408 (“Mineral Tailings”), approved on April 23, 1982 ( 47 FR 17483). R18 - 2 - 6 1 4 (“

Evaluation of nonpoint source emissions ”) The most recent amendments were included in ADEQ’s May 16, 2014 supplement and became effective August 7, 2012 . T he rule was renumbered and revised to include updated references to other rules. The corresponding rule in the existing SIP is R9 - 3 - 410 (“Evaluation of nonpoint source emissions”), approved on April 23, 1982 (47 FR 17483). A rizona Administrative Code, Title 18 (“Environmental Quality”), Chapter 2 (“Departmen t of Environmental Quality – Air Pollution Control”) , Article 7 (“Existing Stationary Source Performance Standards”) 2 R18 - 2 - 701 Definitions Amended Eff. August 7, 2012 R18 - 2 - 703 Standards of Performance for Existing Fossil - Amended Eff. March 7, 200 9

fuel Fired Steam Generators and General Fuel burning Equipment R18 - 2 - 704 Standards of Performance for Incinerators Amended Eff. August 4, 2007 R18 - 2 - 705 Standards of Performance for Existing Portland Amended Eff. Nov. 15, 1993

Cement Plants R18 - 2 - 706 Standards of Performance for Existing Nitric Acid Amended Eff. Nov. 15, 1993

2 All of the art icle 7 rules evaluated herein were submitted on July 28, 2011, except for R18 - 2 - 701, which was submitted on October 29, 2012, and R18 - 2 - 705, R18 - 2 - 706, R18 - 2 - 707, R18 - 2 - 709, R18 - 2 - 714, R18 - 2 - 723, R18 - 2 - 726, and R18 - 2 - 728, where were submitted on July 15, 1 998.11 Plants R18 - 2 - 707 Standards of Performance for Existing Sulfuric Acid Amended Eff. Nov. 15, 1993

Plants R18 - 2 - 708 Standards of Performance for Existing Asphalt Amend ed Eff. March 7 , 2009

Concrete Plants R18 - 2 - 711 Standards of Performance for Existing Secondary Amended Eff. March 7 , 2009

Lead Smelters R18 - 2 - 712 Standards of Performance for Existing Secondary Amended Eff. March 7 , 2009

Brass and Bronze Ingot Production Plants R18 - 2 - 713 Standards of Performance for Existing Iron and Amended Eff. March 7 , 2009

Steel Plants R18 - 2 - 714 Standards of Performance for Existing Sewage Amended Eff. Nov. 15, 1993

Treatment Plants R18 - 2 - 715 Standards of Performance for Existing Primary Amended Eff. March 7 , 2009

Copper Smelters; Site - specific Requirements R18 - 2 - 716 Standard of Performance for Existing Coal Amended Eff. March 7 , 2009

Preparation Plants R18 - 2 - 717 Standards of Performance for Steel Plants: Exist ing Amended Eff. March 7 , 2009

Electric Arc Furnaces (EAF) R18 - 2 - 718 Standards of Performance for Existing Kraft Pulp Mills Repealed Eff. August 4 , 2007 R18 - 2 - 719 Standards of Performance for Existing Stationary Amended Eff. March 7 , 2009

Rotating Mac hinery R18 - 2 - 720 Standards of Performances for Existing Lime Amended Eff. March 7 , 2009

Manufacturing Plants R18 - 2 - 721 Standards of Performance for Existing Nonferrous Amended Eff. March 7 , 2009

Metals Industry Sources R18 - 2 - 722 Standards of Performan ce for Existing Gravel or Amended Eff. March 7 , 2009

Crushed Stone Processing Plants R18 - 2 - 723 Standards of Performance for Existing Concrete Amended Eff. Nov. 15, 1993

Batch Plants R18 - 2 - 724 Standards of Performance for Fossil - fuel Fired Amended Eff. March 7 , 2009

Industrial and Commercial Equipment R18 - 2 - 726 Standards of Performance for Sandblasting Amended Eff. Nov. 15, 1993

Operations R18 - 2 - 728 Standards of Performance for Existing Ammonium Amended Eff. Nov. 15, 1993

Sulfide Manufacturing Plants R18 - 2 - 729 Standards of Performance for Cotton Gins Amended Eff. August 4, 2007 R18 - 2 - 730 Standards of Performance for Unclassified Sources Amended Eff. March 7 , 2009 R18 - 2 - 732 Standards of Performance for Existi ng Hospital/ A mended E ff. August 4, 2007

Medical/Infectious Waste Incinerators Appendix 11 Allowable Particulate Emissions Computations Repealed Eff. March 7 , 2009 SIP - Approved Rules Existing SIP Rule Title Submittal/Approval History R9 - 3 - 101 Definitions Many of the definitions in R18 - 2 - 701 would be new to the SIP ; others were previously12 approved as definitions in R9 - 3 - 101 . The previously - approved definitions from R9 - 3 - 101 were submitted and approved on various dates and in various rulemakings. More specifically, most of the previously approved definitions included in R18 - 2 - 701 were most recently submitted on June 3, 1982 and approved into the SIP on September 28, 1982 (47 FR 42572) or May 3, 1983 (48 FR 19878). ”Existing source” was most recently submitted on January 16, 2004 and approved on August 24, 2004 (69 FR 51952). R9 - 3 - 502 Unclassified Sources Existing version of SIP rule contains various paragraphs that were submitted by ADEQ on January 4, 1979; April 1, 1980; July 17, 1980; and February 3, 1984 ; certain para graphs were approved by EPA on April 23, 1982 at 47 FR 17483, certain other paragraphs were approved on October 19, 1984 at 49 FR 41026. R9 - 3 - 503 Standards of Performance for Existing Fossil fuel Fired Steam Generators and General Fuel Burning Equipment Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; July 17, 1980; and July 13, 1981 ; and approved by EPA on April 23, 1982 at 47 FR 17483. R 9 - 3 - 504 Standards of Performance for Incineration Exis ting version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and July 17, 1980 ; and approved by EPA on April 23, 1982 at 47 FR 17483 . R9 - 3 - 50 5 Standards of Performance for Existing

Portland C ement P lants Exis ting version of SIP rule contains various paragraphs that were submitted on January 4, 1979; July 17, 1980; and Ju ne 3, 198 2 ; and approved by EPA13 on April 23, 1982 at 47 FR 17483 , and September 28, 1982 at 47 FR 42572 . R9 - 3 - 50 6 Standards of Performance for Existing Nitric

Acid Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; July 17, 1980; and Ju ly 1 3, 198 1 ; and approved by EPA on April 23, 1982 at 47 FR 17483. R9 - 3 - 50 7 Stan dards of Performance for Existing Sulfuric

Acid Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979 and July 17, 1980; and approved by EPA on April 23, 1982 at 47 FR 17483. R9 - 3 - 508 Standards of Performan ce for Existing Asphalt

Concrete Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs were approved by EPA on April 23, 1982 at 47 FR 17483, and Paragraphs B to B.1, B.2, and B.5 were approved on September 28, 1982 at 47 FR 42572. R9 - 3 - 50 9 Standards of Performance for Existing

Petroleum Refineries Existing version of SIP rule contains was submitted on July 17, 1980; and approved by EPA on April 23 , 1982 at 47 FR 17483. R9 - 3 - 511 Standards of Performance for Existing

Secondary Lead Smelters Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs were approve d by EPA on April 23, 1982 at 47 FR 17483, and Paragraphs A to A.1, and A.2 were approved on September 28, 1982 at 47 FR 42572. R9 - 3 - 512 Standards of Performance for Existing

Secondary Brass and Bronze Ingot Production Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and July 17, 1980; and approved by EPA on April 23, 1982 at 47 FR 17483.14

R9 - 3 - 513 Standards of Performance for Existing Iron

and Steel Plants Existing version of SIP rule c ontains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs were approved by EPA on April 23, 1982 at 47 FR 17483, and Paragraphs A to A.1, and A.2 were approved on September 28, 1982 at 47 FR 4257 2. R9 - 3 - 5 14 Standards of Performance for Existing Sewage

Treatment Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980, and July 17, 1980 ; and approved by EPA on April 23, 1982 at 47 FR 174 83. R18 - 2 - 715 Standards of Performance for Existing Primary

Copper Smelters; Site - Specific Requirements Existing version of the SIP contains paragraphs F, G, and H and was submitted by ADEQ on September 12, 2003 and approved by EPA on November 1, 2004 at 69 FR 63321. As to R18 - 2 - 715, paragraphs A through E, the corresponding provisions in the existing applic able SIP include SIP rule 7 - 1 - 3.6 (for copper smelters outside of Gila, Maricopa, Pima, Pinal and Santa Cruz counties) and FIP rule at 40 CFR 52.126(b)(for copper smelters within those counties). R9 - 3 - 516 Standards of Performance for Existing Coal

Preparation Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs were approved by EPA on April 23, 1982 at 47 FR 17483, and Paragraphs A to A.1, and A.2 were approved on September 28, 1982 at 47 FR 42572. R9 - 3 - 517 Standards of Performance for Steel Plants:

Existing Electric Arc Furnaces (EAF) Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs15 were approved by EPA on April 23, 1982 at 47 FR 17483, and Paragraphs A to A.1 were approved on September 2 8, 1982 at 47 FR 42572. R9 - 3 - 518 Standards of Performance for Existing Kraft

Pulp Mills Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs were approved by E PA on April 23, 1982 at 47 FR 17483, and Paragraphs A to A.1, and A.2 were approved on September 28, 1982 at 47 FR 42572. R9 - 3 - 519 Standards of Performance for Existing

Stationary Rotating Machinery Existing version of SIP rule contains various paragraphs that were submitted by ADEQ on January 4, 1979 and July 17, 1980 and approved by EPA on April 23, 1982 at 47 FR 17483. R9 - 3 - 520 Standards of Performance for Existing Lime

Manufacturing Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs were approved by EPA on April 23, 1982 at 47 FR 17483, and Paragraphs A to A.1, and A.2 were approved on September 28, 1982 at 47 FR 42572. R9 - 3 - 521 Standards of Perfor mance for Existing

Nonferrous Metals Industry Sources Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979; April 1, 1980; and June 3, 1982; certain paragraphs were approved by EPA on April 23, 1982 at 47 FR 17483 , and Paragraphs A to A.1, and A.2 were approved on September 28, 1982 at 47 FR 42572. R9 - 3 - 522 Standards of Performance for Existing Gravel

or Crushed Stone Processing Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979 and June 3, 1982; certain paragraphs were approved by EPA on April 23, 1982 at 47 FR 17483, and16 Paragraphs A to A.1, and A.2 were approved on September 28, 1982 at 47 FR 42572. R9 - 3 - 5 23 Standards of Performance for Existing

Concrete Batch Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979 and July 17, 1980; and approved by EPA on April 23, 1982 at 47 FR 17483. R9 - 3 - 524 Standards of Performance for Existing Fossil Fuel Fired Industrial an d Commercial Equipment Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979 (C, D.1, D.2, D.4 to G.5) and July 17, 1980 (A, B, D and D.3) by ADEQ and that were approved by EPA on April 23, 1982 at 47 FR 17483. R9 - 3 - 5 26 S andblasting Operations Existing version of SIP rule was submitted on Januar y 4, 1979; and approved by EPA on April 23, 1982 at 47 FR 17483. R9 - 3 - 5 28 Standards of Performance for Existing

Ammonium Sulfide Manufacturing Plants Existing version of SIP rule contains various paragraphs that were submitted on January 4, 1979 and July 17, 1980; and approved by EPA on April 23, 1982 at 47 FR 17483. R9 - 3 - 529 Standards of Performance for Cotton Gins Existing version of SIP rule was submitted by ADEQ on Fe bruary 3, 1984 and approved by EPA on October 19, 1984 at 49 FR 41026. R18 - 2 - 732 See regulatory history for R9 - 3 - 504. Hospital

incinerators were formerly regulated under R9 - 3 - 504 (re - numbered R18 - 2 - 704), but are now regulated separately under R18 - 2 - 732. Appendix 11 Allowable Particulate Emissions

Computations Submitted on February 3, 1984; Approved on October 19, 1984, 49 FR 41026; corrected on January 16, 2004, 69 FR 2509. Rule Revisions and Evaluation Section 110(a) of the C lean Air Act (CAA or “Act”) requires states to submit state implementation plans (SIPs) to provide for the implementation, maintenance, and enforcement of the national ambient air quality standards (NAAQS), including those for particulate matter (PM - 10 and PM 2.5 ), ozone, carbo n monoxide, sulfur dioxide, nitrogen dioxide and lead. EPA promulgates the NAAQS17

to protect public health and safety. SIPs must contain, among other elements, enforceable emission limitations and other control measures, means, or techniques as may be neces sary or appropriate to meet SIP requirements. SIPs must also include programs to provide for the regulation of the modification and construction of any stationary source to assure that the NAAQS are achieved, including permit programs to meet the additiona l requirements in areas where the NAAQS are being violated and to prevent significant deterioration in areas where the NAAQS are being achieved. Generally, the submitted statutes, rules , and rule rescissions represent revisions (or rescissions) to statutes and rules previously approved by EPA into the Arizona SIP. We have evaluated th e submitted provisions for compliance with currently - applicable SIP requirements (which might have changed relative to when the rules were originally approved into the SIP), and to determine whether the revisions (or rescissions) would interfere with any applicable requirement s concerning attainment and reasonable further progress (RFP) or any other applicable requirement of the Act under CAA section 110(l)) or are other wise precluded from approval under CAA section 193 . Section 110(l) provides in relevant part: “[EPA] shall not approve a revision of a [SIP] if the revision would interfere with any applicable requirement concerning attainment and reasonable further progr ess (as defined in [CAA section 171]), or any other applicable requirement [of the CAA].” Section 193 provides in relevant part: “No control requirement in effect ... in any area which is a nonattainment area for any air pollutant may be modified after No vember 15, 1990, in any manner unless the modification insures equivalent or greater emission reductions of such air pollutant.” Arizona Revised Statutes, Title 49 (“ The Environment ”), Chapter 3 (“Air Quality”), Article 1 (“General Provisions”) 49 - 402 (“ State and county control ”) ADEQ’s October 29, 2012 SIP submittal indicated that this statute, as amended, was being submitted for approval , but it was inadvertently omitted from the SIP submittal package. However, ADEQ did submit ARS 49 - 402 to EPA in a sup plemental SIP submittal dated September 6, 2013. Relative to the version approved into the SIP, section 49 - 402 (as submitted in 2013) was a mended by the Arizona Legislature in 2002 to extend permitting authority by ADEQ over title V sources in any county f or which EPA has disapproved the title V permit program if EPA has approved ADEQ’s program. So long as title V sources are being administered under an EPA - approved program, it does not matter whether that program is State - run or county - run; thus, this chan ge is acceptable. Recommend approval. Section 49 - 4 26 (“

Permits; duties of director; exceptions; applications; objections; fees” ) As noted above, this statute was included in ADEQ’s May 16, 2014 supplement to the July 28, 2011 SIP submittal. ADEQ submitte d only paragraphs (A), (B), (C), (E)(2), (F), (G), (H), (K), (L), (N), (O), and (P) for approval into the SIP. The excluded paragraphs are related to title V program requirements and need not be included in the SIP. Paragraph (F) provides that permits sha ll be issued for a period of five years. The statute differs from the existing SIP version of this statute [ ARS 36 - 1707.1 (“Permits; Exceptions; Applications; Fees”) ] in that it provides for the issuance of general permits . Recommend approval but refer par agraph (F) to the NSR - related rulemaking . A rizona Administrative Code, Title 18 (“Environmental Quality”), Chapter 2 (“Department of

Environmental Quality – Air Pollution Control”) , Article 1 (“General”) R18 - 2 - 101 (“

Definitions ”) T he following table provides an evaluation and recommendation for each defined term included in R18 - 2 - 101, as submitted on October 29, 2012 , with the exception of the following definitions that will be considered in the NSR - related rulemaking: 2. Actual emissions; 20. Begin actual construction; 32. Construction; 87. Net emissions increase; 109. Potential to emit; and 122. Regulated NSR pollutant.18

Paragraph # Defined Term: Evaluation Recommendation 1 Act Same as existing SIP definition but amended to exclude CAA Amendments after December 31, 2011. A cceptable. Approve 2 Actual emissions Will be evaluated in a separate rulemaking . 3 Administrator S ame as existing SIP definition. Acceptable. Approve 4 Affected facility Same as existing SIP definition. Same as definition in 40 CFR 60.2. Acceptable. Approve 5 Affected source New to SIP. Patterned after definition in CAA section 402(2). Acceptable. Approve 6 Affected state New to SIP. Patterned after definition in 40 CFR 70.2. Acceptable. Approve 7 Afterburner Same as existing SIP. Included as subparagraph (e) within definition of “incinerator” at R9 - 3 - 101(81). Acceptable. Approve 8 Air contaminants Same as existing SIP definition in R9 - 3 - 10 2

as submitted on September 16, 1975 and approved at 43 FR 33245 (July 31, 1978 ) . Also same as ARS 49 - 421(1), approved at 77 FR 66398 (November 5, 2012). Acceptable. Approve

9 Air curtain destructor Same as existing SIP. Included as

subparagraph (d) within definition of “incinerator” at R9 - 3 - 101(81). Acceptable. Approve 10 Air pollution Same as existing SIP definition in R9 - 3 - 102 as submitted on September 16, 1975 and approved at 43 FR 33245 (July 31, 1978). Also same as ARS 49 - 421(2), approved at 77 FR 66398 (November 5, 2012). Acceptable. Approve

11 Air pollution control equi pment Same as existing SIP. Acceptable. Approve 12 Air quality control region Same as existing SIP with the exception

that the listing for the Mohave - Yuma Intrastate AQCR has been updated to reflect the separation of the northern portion of Yuma County in 1983 and establishment of La Paz County . Acceptable. Approve

13 Allowable emissions Same as existing SIP but amended for

purposes of clarification and updated. Acceptable. Approve 14 Ambient air Same as existing SIP. Acceptable Approve19

15 Applicable implementation plan New to SIP. Consistent with 40 CFR 52.02(a)

and (b). Approv e 16 Applicable requirement New to SIP. Relies on term “federal

applicable requirement” (see notes below as to that term). Acceptable or unacceptable to the extent that “federa l applicable requirement” is acceptable or unacceptable. See notes on “federal applicable requirement”

17 Arizona Testing Manual Similar to existing SIP but amended to refer

specifically to section 1 and 7 of the manual and limited to amendments of the manual through March 1992. EPA last approved section 1 of the Arizona Testing Manual on 47 FR 17485 ( April 23, 1982 ) . Section 7 woul d be new to the SIP and is only relied on in R18 - 2 - 715 . Acceptable. Approve .

18 ASTM Similar to existing SIP. Acceptable. Approve 19 Attainment area The definition of this term has been revised

to no longer refer to designations under CAA section 107 but rather to refer to areas that have been identified in regulation promulgated by EPA as being in compliance with national ambient air quality standards. This change may be problematic depending on how the term is relied upon in the substantive rule(s). For example, for PSD, attainment area should refer to areas designated or redesignated as attainment under section 107(d). Areas for which EPA has made determinations of attainment, but has not yet redesignated, remain designated nonattainment and should c ontinue to be subject to Nonattainment NSR provisions, not PSD. ADEQ indicates that, while the reason for the revision is unknown, the revision in the definition does not affect any substantive requirement, such as applicability determinations, because of the explicit language in the substantive rules. EPA’s review of the term as used in the title 18, chapter 2 of the AAC supports ADEQ’s conclusion. The explicit language or context clearly indicates that “attainment area” as used in applicable AAC rules re fers to areas designated as attainment, not simply areas that are found to attain the NAAQS (but still designated as nonattainment). Approve. 20 Begin actual construction Will be evaluated in a separate rulemaking .20

21 Best available control technology Similar to existing SIP, but portion of

definition has been moved to R18 - 2 - 406(A)(4), which is appropriate since it contains requirements rather than definition language. Acceptable. Approve

22 Btu Similar to existing SIP. Acceptable. Approve 23 Categori cal sources Similar to existing SIP. Acceptable. Approve 24 Categorically exempt activities New definition. List of small engines and

boilers which are not subject to NSR, if this is the only equipment at the facility. Basically NSR exempt equipment, with caveat. All listed equipment below acceptable exemption levels. Acceptable . Approve

25 CFR Similar to existing SIP. Acceptable. Approve 26 Charge Similar to existing SIP. Acceptable. Approve 27 Clean coal technology New to SIP. Same as definition in 40 CFR

51.166(b)(33). Approve 28 Clean coal technology demonstration project New to SIP. Same as definition in 40 CFR

51.166(b)(34). Approve

29 Coal Similar to existing SIP but includes updated ASTM reference. Acceptable. Approve 30 Combustion Same as existing SIP. Acceptable. Approve 31 Commence Similar to existing SIP. R eference to title IV ha s been removed . Acceptable . Approve 32 Construction Will be evaluated in a separate rulemaking . 33 Continuous monitoring system Revised to refer to CEMS, CERMS, or CP MS. Approve 34 Continuous emissions monitoring system CEMS - New to SIP. Similar to definition of

corresponding term in 40 CFR 51.166(b)(4 3 ). Acceptable. Approve

35 Continuous emissions rate monitoring system CERMS - New to SIP. Same as definition of

corresponding term in 40 CFR 51.166(b)(46). Acceptable. Approve

36 Continuous parameter monitoring system CPMS - New to SIP. Similar to definition of

corresponding term in 40 CFR 51.166(b)(45). Acceptable. Approve

37 Controlled atmosphere incinerator Same as existing SIP. Included as

subparagraph (b) within definition of “incinerator” at R9 - 3 - 101(81). Acceptable. Approve21

38 Conventional air pollutant New to SIP as a definition in the A rizona

A dministrative C ode , but it is the same as the definition approved in to the Arizona SIP as ARS 49 - 401.01( 10 ). Acceptable. Approve

39 Department Updated to refer to the Department of Environmental Quality instead of the Department of Health Services. Acceptable. Approve 40 Director Updated to refer to the Director of the Department of Environmental Quality instead of the Director of the Department of Health Services. Acceptable. Approve

41 Discharge Similar to existing SIP. Acceptable. Approve 42 Du st Same as existing SIP. Acceptable. Approve 43 Dust suppressant Same as existing SIP. Acceptable. Approve 44 Effluent Same as existing SIP. Acceptable. Approve 45 Electric utility steam generating unit New to the SIP. Same as the definition in 40

CFR 51.166(b)(30). Acceptable. Approve 46 Emission Same as existing SIP. Acceptable. Approve 47 Emission standard Revised to reflect the definition of this term

and “emission limitation” in 40 CFR 51.100(z). Acceptable. Approve 48 Emissions unit Revised to use the term “regulated air pollutant” and to refer specifically to electric steam generating units. Acceptable. Approve 49 Equivalent method Revised to include a reference to R18 - 2 -

311, which was included in the May 16, 2014 supplement to the July 28, 20 11 SIP submittal . This definition reflect s significant Director’s discretion in approval of equivalent method but would be an improvement o ver the existing SIP ( compare existing SIP R9 - 3 - 310, paragraph C). Approve

50 Excess emissions Same as existing SIP . As codified, this

definition could be in conflict with principle of credible evidence (see 40 CFR 51.212(c)) because “excess emissions” is defined by reference to measurements “by the compliance test method applicable to such emission standard,” thereby potentially precluding other credible evidence of an excess of an emissions standard in conflict with 40 CFR 51.212(c) . In contrast, 40 CFR 51.100(bb) defines excess emissions as Approve, but request clarification from ADEQ of whether the definition of “excess emissions” precludes use of credible evidence in establishing whether an emissions standard has been violated .22 “emissions of an air pollutant in excess of an emission standard.” 51 Federal applicable requirement New to SIP. Similar to definition of

“applicable requirement” in 40 CFR 70.2, but missing “any standard or other requirement under section 126(a)(1) and (c) of the Act.” CAA section 126 relates to interstate pollution abatement . ADEQ indicates that that the failure to include the missing element was inadvertent although as a practical matter, the fact that it is missing probably make no substantive difference given the expansiveness of other listed elements. In addition, to the extent there is a deficiency, it is a title V deficiency, not a SIP deficiency. Approve, but recommend that ADEQ revise the definition accordingly when the next opportunity to revise R18 - 2 - 101 presents itself. 52 Federal land manager Same as existing SIP. Same as 40 CFR

51.166(b)(24). Acceptable. Approve 53 Federal ly enforceable Similar to existing SIP, with new language

to clarify treatment of ‘state only’ conditions in permits. Equivalent to definition of corresponding term in 40 CFR 51.166(b)(17). Acceptable . Approve

54 Federally listed hazardous air pollutant New to SIP. Acceptable. Approve 55 Final permit New to SIP. Similar to corresponding definition in 40 CFR 70.2. Acceptable. Approve 56 Fixed capital cost Same as existing SIP. Same as 40 CFR

51.166(b)(55). Acceptable. Approve 57 Fuel Same as existing SIP. Acceptable. Approve 58 Fuel burning equipment Same as existing SIP. Acceptable. Approve 59 Fugitive emissions Same as existing SIP. Same as 40 CFR

51.166(b)(20). Acceptable. Approve 60 Fume Same as existing SIP. Acceptable. Approve 61 Fume incinerator Same as existing SIP. Included as

subparagraph (f) within definition of “incinerator” at R9 - 3 - 101(81). Acceptable. Approve23

62 Good engineering practice (GEP) stack height Existing SIP spells out these requirements .

New submittal references R18 - 2 - 332, which was included in the October 29, 2012 SIP revision submittal. The provisions of R18 - 2 - 332 are essentially equivalent to those set forth at 40 CFR 51.100(ii). Acceptable. Approve

63 Hazardous air pollutant Revised to refer to the federally listed

HAPs. This definition cites a provision of the AAC not submitted as part of the SIP, but given that the definition relates to non - SIP matters, the omission would be harmless. Approve

64 Heat input Same as existing SIP. Acceptable Approve 65 Incinerator Same as existing SIP except that definitions for specific types of incinerators (e.g., multiple chamber incinerators) have been relocated and listed in the definitions rule individually instead of paragraphs under “incinerator.” Acceptable. App rove

66 Indian governing body Same as existing SIP and same as 40 CFR

51.166(b)(28). Approve 67 Indian reservation Same as existing SIP and same as 40 CFR

51.166(b)(27). Approve 68 Insignificant activity New definition. Specific list of equipment

and/or activities. Term used in connection with the NSR program. Approve , but reconsider in context of future action on revised NSR rules. 69 Kraft pulp mill Same as existing SIP. Acceptable. Approve 70 Lead Same as existing SIP. Acceptable. Approve 71 Lime hydrator Same as existing SIP. Acceptable. Approve 72 Lime plant Same as existing SIP definition for “lime manufacturing plant.” Acceptable. Approve 73 Lime product Similar to existing SIP. Acceptable. Approve 74 Major modification Similar to existing SIP, consistent with term

defined in both 51.165 and 51.166. Acceptable. Approve 75 Major source Similar to existing SIP (R9 - 3 - 101), in that it includes same definition for NA areas. New definition also includes definition for attainment areas and for HAPs. Sec. 49 - 401.01 definition was for Title V major sources, which is now covered by broadness of new definition. Acceptable . Approve

76 Malfunction Same as existing SIP. Similar to definition of this term in 40 CFR 60.2. Acceptable. Approve 77 Minor source Same as existing SIP but the statutory reference has been updated. Acceptable. Approve24

78 Minor source baseline area New to SIP. Refers to air quality control

regions (AQCRs) established in Arizona and approved by EPA. The AQCRs were not used for area designations under section 107, however, and thus may not be the correct areas in which to tra ck increment consumption for PSD purposes. Approve, but reconsider in context of future action on revised NSR rules.

79 Mobile source Same as definition from existing SIP ARS 49 - 401.01(18). Acceptable. Approve 80 Modification Similar to existing SIP, but establishes a potential to potential test for modifications at minor sources. ADEQ has provided no analysis upon which to conclude that this relaxation would not interfere with attainment of the NAAQS or any other applicable requirement of the Act. Approv e, but reconsider in context of future action on revised NSR rules.

81 Monitoring device Same as existing SIP. Similar to 40 CFR 60.2.

Acceptable. Approve 82 Motor vehicle Same as existing SIP. Acceptable. Approve 83 Multiple chamber incinerator Same as existing SIP. Included as

subparagraph (a) within definition of “incinerator” at R9 - 3 - 101(81). Acceptable. Approve 84 Natural conditions New to SIP. Same as corresponding

definition in 40 CFR 51.301. Acceptable. Approve 85 National ambient air quality standard Same as definition from existing SIP ARS

49 - 401.01(20). Acceptable. Approve

86 Necessary preconstruction approvals or permits Similar to existing SIP. Satisfies the

definition in 51.166 (b)(10). Acceptable. Approve

87 Net emissions increase Will be evaluated in a separate rulemaking . 88 New source Revised to refer to any stationary source which is subject to an applicable new source performance standard under AAC, title 18, chapter 2, article 9 instead to any major stationary source constru cted or modified after May 14, 1979. Acceptable. Approve

89 Nitric acid plant Same as existing SIP. Same as 40 CFR 51.100(cc). Acceptable. Approve 90 Nitrogen oxides Revised to refer to test methods in 40 CFR part 60 rather than the Arizona Testing Manual. Similar to definition of corresponding term in 40 CFR 60.2. Acceptable. Approve25

91 Nonattainment area Same as existing SIP. Acceptable. Approve 92 Nonpoint source Same as existing SIP. Acceptable. Approve 93 Opacity Expanded to mirror the definition of the corresponding term in 40 CFR 60.2. Acceptable. Approve 94 Operation Same as existing SIP. Acceptable. Approve 95 Owner or operator Expanded to refer to, among other things,

any stationary source as opposed to a stationary source “of which an affected facility is a part.” Acceptable. Approve

96 Particulate matter Revised to mirror the definition in 40 CFR

51.100(oo). Acce p table. Approve 97 Particulate matter emissions New to SIP . Similar to definition of

corresponding term in 40 CFR 51.100(pp). Acceptable. Approve 98 Permitting authority Similar to definition from existing SIP ARS

49 - 401.01(23). Acceptable. Approve 99 Permitting exemption thresholds New to SIP. Permit exemptions set at 50%

of PSD significance thresholds. Need to r eview supporting documentation to determine if thresholds are acceptable. Approve, but reconsider in context of future action on revised NSR rules. 100 Person Same as existing SIP. Acceptable. Approve 101 Planning agency Same as definition from existing SIP ARS

49 - 401.01(24). Acceptable. Approve 102 Predictive emissions monitoring system New to SIP. Similar to definition of

corresponding term in 40 CFR 51.166(b)(44). Acceptable. Approve

103 PM2.5 New to SIP. Acceptable. Approve 104 PM10 New to SIP. Similar to definition in 40 CFR 51.100(qq). Acceptable. Approve 105 PM10 emissions New to SIP. Similar to definition in 40 CFR

51.100(rr). Acceptable. Approve 106 Plume Same as existing SIP. Acceptable. Approve 107 Pollutant Similar to existing SIP. Acceptable. Approve 108 Portable source New to SIP. Acceptable . Approve 109 Potential to emit Will be evaluated in a separate rulemaking . 110 Primary ambient air quality standards Revised to refer to the standards listed in

title 18, chapter 2, article 2, as opposed to those judged necessary by EPA. Since article 2 standards reflect EPA standards, this is acceptable. Approve

111 Process Same as existing SIP. Acceptable. Approve26

112 Project New to SIP. Same as definition of corresponding term in 40 CFR 51.166(b)(51). Acceptable. Approve 113 Proposed permit New to SIP. Similar to definition of

corresponding term in 40 CFR 70.2. Contains a reference to a rule (R18 - 2 - 307(D)) not submitted for SIP approval, but the reference relates to title V procedures, which do not need to be approved as part of the SIP. Acceptable. Approve

114 Proposed final permit New to SIP. Contains a reference to a rule

(R18 - 2 - 307(A)) not submitted for SIP approval, but the reference relates to title V procedures, which do not need to be approved as part of the SIP. Acceptable. Approve

115 Reactivation of a very clean coal - fired electric utility steam generating unit New to SIP. Mirrors the definition of the

corresponding term in 40 CFR 51.166(b)(37). Acceptable. Approve

116 Reaso nable further progress New to SIP. Acceptable. Approve 117 Reasonably available control technology Revised substantially relative to existing SIP

definition. Used in connection with the NSR program. Acceptable. Approve

118 Reclaiming machinery Same as existing SIP. Acceptable . Approve 119 Reference method Revised to include various EPA references

in addition to the Arizona Testing Manual. Acceptable. Approve 120 Regulated air pollutant New to SIP. Similar to the definition of the

same term in 40 CFR 70.2; however, the references in this definition to Articles 9 and 17 may not cover the same pollutants as the corresponding provisions in the definition of “regulated air pollutant” in 40 CFR 70.2 . Approve, but reconsider in context of future action on r evised NSR rules .

121 Regulated minor NSR pollutant New to SIP. May need to be revised to

address PM 10 precursors in PM 10 nonattainment areas, and additional PM 2.5 precursors in PM 2.5 nonattainment areas in light of the decision in Natural Resources Def ense Council v. EPA , 706 F.3d 428 (D.C. Cir. 2013). Approve, but reconsider in context of future action on revised NSR rules .27

122 Regulated NSR pollutant Will be evaluated in a separate rulemaking . 123 Repowering New to SIP. Mirrors definition of corresponding term in 40 CFR 51.166(b)(36). Acceptable. Approve 124 Run Same as existing SIP. Similar to definition of corresponding term in 40 CFR 60.2. Acceptable. Approve 125 SCREEN model New to SIP. Refers to AERSCREEN model p ublished by EPA in April 2011. Acceptable. Approve 126 Secondary ambient air quality standards Revised to refer to the standards listed in

title 18, chapter 2, article 2, as opposed to those judged necessary by EPA. Since article 2 standards reflect EPA s tandards, this is acceptable. Approve

127 Secondary emissions Revised to exclude emissions from trains

coming to or from the new or modified station source. However, this revision is consistent with the definition of the corresponding term in 40 CFR 51.166(b)(18). Acceptable. Approve

128 Section 302(j) category New to SIP. CAA section 302(j) provides:

“Except as otherwise expressly provided, the terms ‘major stationary source’ and ‘major emitting facility’ mean any stationary facility or source of air pollutants which directly emits, or has the potential to emit, [100] tons per year or more of any air pollutant (including any major emitting facility or source of fugitive emissions of any such pollutant, as determined by rule by the [EPA].” The definition of “section 302(j) category” refers to “categorical” sources in subparagraph (23) of R18 - 2 - 101 , which list the specific categories of sources that are conside red “major” for the purposes of the PSD program. Approve, but reconsider in context of future action on revised NSR rules.

129 Shutdown Same as existing SIP. Similar to definition of corresponding term in 40 CFR 60.2 except that the definition in AAC excludes “rout in e phasing out of process equipment” from the definition of “shutdown.” Acceptable. Approve

130 Significant Similar to existing SIP but adds addit ional thresholds for pollutants that have become “regulated NSR pollutants” since the SIP definition was last approved and deletes certain thresholds for HAPs, which are no Approve, but reconsider in context of future action on revised NSR rules.28 longer regulated under the PSD program. May need to be revised to address GHGs and additional PM2.5 precursors. 131 Significant emissions increase New to SIP. Same as PSD definition in 40

CFR 51.166(b)(39). Acceptable. Approve, but reconsider in context of future action on revised NSR rules. 132 Smoke Same as existing SIP. Acceptable. Approve 133 Source Same as definition from existing SIP ARS 49 - 401.01(29). Acceptable. Approve 134 Stack Same as existing SIP. Same as 40 CFR 51.100(ff). Acceptable. Approve 135 Stack in existence New to SIP. Same as 40 CFR 51.100(gg).

Acceptable. Approve 136 Start - up Same as existing SIP. Acceptable. Approve 137 State implementation plan Revised to refer to the accumulated record

of enforceable air pollution control measures approved by EPA. Acceptable. Approve 138 Stationary rotating machinery Same as existing SIP. Acceptable. Approve 139 Stationary source Same as existing SIP. This definition refers

to ARS 49 - 426(A), which is a statutory provision that was included in the May 16, 2014 supplement to the July 28, 2011 SIP submittal and is being approved herein. Approve

140 Sulfuric acid plant Same as existing SIP. Similar to the

definition of the corresponding term in 40 CFR 51.100(dd). Approve 141 Temporary clean coal tech nology demonstration project New to SIP. Similar to the definition of the

corresponding term in 40 CFR 51.166(b)(35). Approve

142 Temporary source New to SIP. Means a source which is

portable, “as defined in A.R.S. § 49 - 401.01(23) and which is not an “affected source.” A version of A.R.S. § 49 - 401.01 is approved in the SIP, but version approved in the SIP does not include a definition of “ portable source” in subsection (23). However, this term is used in connection with the Title V program and the related definition of “federal applicable requirement” in R18 - 2 - 101 and need not be approv ed into the SIP. Therefore, the Approve , but reconsider in context of future action on revised NSR rules.29 deficiency does not preclude approval into the SIP. 14 3 Total reduced sulfur Same as existing SIP. Acceptable. Approve 144 Trivial activities New to SIP. Refers to activities and sources that may be omitted from a permit or registration application. Approve, but reco nsider in context of future action on revised NSR rules. 145 Unclassified area Similar to existing SIP. Acceptable. Approve 146 Uncombined water Same as existing SIP. Acceptable. Approve 147 Urban or suburban open area Same as existing SIP. Acceptable. Approve 148 Vacant lot Same as existing SIP. Acceptable. Approve 149 Vapor Same as existing SIP. Acceptable. Approve 150 Visibility impairment New to SIP. Same as definition of

corresponding term in 40 CFR 51.301. Acceptable. Approve 151 Visible emissions Same as existing SIP. Acceptable. Approve 152 Volatile organic compounds Revised to reflect the current list of exempt

compounds in 40 CFR 51.100(s). Acceptable. Approve 153 Wood waste burner Similar to existing SIP. Included as

subparagraph (c) within definition of “incinerator” at R9 - 3 - 101(81). Acceptable. Approve

R18 - 2 - 102 (“

Incorporated Materials ”) Normally, materials that the State incorporates by reference should be submitted along with the rule that incorporates them, and ADEQ has not submitted the ASTM test methods or GPO’s 1987 manual for approval as part of the SIP. However, with respect to the ASTM test methods and GPO 1987 manual, no submittal is necessary because , with respect to the ASTM test methods, they have already been incorporated by reference in 40 CFR part 60.17(a), and the GPO 1987 manual is a standard Federal reference. Recommend approval. A rizona Administrative Code, Title 18 (“Environmental Quality”), Chapter 2 (“Department of Environmental Quality – Air Pollution Control”) , Article 2 (“Amb ient Air Quality Standards; Area Designations; Classifications”) R18 - 2 - 201 (“

Particulate matter: PM 10 and PM 2.5 “) A mended to add subsections (A) (3)(a) and (A)(3)(b), which determines test methods to measure PM 10 . Subsection (B) was added to incorporate the primary and secondary ambient air quality standards for PM 2.5 and to reference methods used to measure PM 2.5 , and to determine attainment of the standards. The existing SIP rule s (R9 - 3 - 201 and R9 - 3 - 218 ) include outdated standards and methods for determ ining attainment . Recommend approval.30

R18 - 2 - 202 (“

Sulfur oxides (sulfur dioxide) ”) The rule, as amended, updates the sulfur dioxide ambient air quality standards to reflect EPA regulations at 40 CFR 50.5 and 50.17. The amended rule also provides for the revocation of the annual and 24 - hour primary SO 2 standards in most areas of the state upon the “effective date of the designation” for the new 1 - hour SO 2 standard. See R18 - 2 - 202(D)(2). However, under 40 CFR 50.4, the annual and 24 - hour standard remain appl icable until one year after the effective date; and thus, R18 - 2 - 202 revokes the annual and 24 - hour primary SO2 standards one year too soon. Recommend approval but also recommend that ADEQ conform the rule to the revocation schedule set forth in 40 CFR 50. 4. R18 - 2 - 203 (“

Ozone: 1 - hour standard and 8 - hour averaged Standard ”) The rule, as amended, a dds an 8 - hour ozone standard to reflect the 2008 national standards and to revoke the 1 - hour ozone standard after June 15, 2005 . This is acceptable. The existing SIP rules (R9 - 3 - 204 and R9 - 3 - 218) include s outdated standards and methods for determining attainment . Recommend approval. R18 - 2 - 20 4 (“

Carbon monoxide ”) Most recent amendments became effective September 26, 1990 and were included in ADEQ’s May 16, 2014 sup plement f or approval as part of the SIP. The rule, as amended, adds language consistent with 40 CFR 50.8(c) and 50.8(d). This is acceptable. A pproval of R18 - 2 - 204 would supersede existing SIP rule R9 - 3 - 305 (“Carbon monoxide”), a pproved on October 19, 1984 (49 FR 41026) . Recommend approval. R18 - 2 - 20 5 (“

Nitrogen Oxides (Nitrogen Dioxide) ”) The rule, as amended, updates the NO 2 ambient air quality standards to reflect EPA regulations at 40 CFR 50.11. The corresponding provision in the existing SIP is R9 - 3 - 206 (“Nitrogen Dioxide”), a pproved on October 19, 1984 (49 FR 41026). Recommend approval. R18 - 2 - 20 6 (“

Lead ”) The rule, as amended, updates the lead ambient air quality standards to reflect EPA regulations at 40 CFR 50.16 and provides for the revocation of the original lead ambient air quality standard set forth at 40 CFR 50.12. The corresponding provision in the existing SIP is R9 - 3 - 207 (“Lead”), a ppr oved on October 19, 1984 (49 FR 41026). Recommend approval. R18 - 2 - 210 (“Attainment, Nonattainment, and Unclassifiable Area Designations”) This rule incorporates by reference the area designations as of July 1, 2011, but as such, does not include a number of new designations and redesignations in Arizona. Recommend approval but also recommend that ADEQ update R18 - 2 - 210 to reflect current air quality planning area designations in the State of Arizona. R18 - 2 - 215 (“Ambient air quality monitoring methods and p rocedures”) Th e rule, as amended , refers to 40 CFR part 58 rather than the Arizona Testing Manual for applicable quality assurance, monitor siting, and sample probe installation procedures. This is acceptable. Recommend approval. R18 - 2 - 216 (“Interpretatio n of Ambient Air Quality Standards”) The rule was am ended to remove a reference to Appendix 10 (repealed) and to add a reference to appendix 2. (See evaluation of appendix 2.) Recommend approval.31

R 9 - 3 - 21 8 (“ Violations”)(Re scission ) This corresponding renumbered rule , R18 - 2 - 219, was repealed effective August 7, 2012 . ADEQ previously submitted but did not list the repeal of R18 - 2 - 219 as part of the SIP revision, but has since clarified that rescission of the existing SIP rule, R9 - 3 - 218, is requested. R9 - 3 - 218 is outdated and deletion of it from the SIP would be consistent with the other revisions being made to title 18, chapter 2, article 2 and evaluated herein . Recommend approval of the resc ission of existing SIP rule R 9 - 3 - 218 . Appendix 2 (“Test Methods and Protocols”) Appendix 2 incorporates by reference the test methods and protocols codified in 40 CFR parts 50, 51, 52, 53, 58, 60, 61, 63, and 75 . Appendix 2 is referenced in R18 - 2 - 216 . Al l of the test methods and protocols incorporated by reference in appendix 2 are already Federal law, and thus, there is no need for ADEQ to submit the individual test methods and protocols to EPA for approval into the SIP. T he version of appendix 2 include d in the May 16, 2014 supplement to the July 28, 2011 SIP submittal refers to the methods and protocols revised as of July 1, 200 6 . Recommend approval . Appendix 10 (“

Evaluation of Air Quality Data ”)(Rescission) Repealed be cause it contains out dated monit oring protocols. Approval of the repeal of appendix 10 would provide EPA with the basis to delete existing SIP appendix 10 without replacement from the Arizona SIP. Such deletion without replacement would be acceptable given that it contains outdated monit oring protocols and newly submitted appendix 2 (above) provides updated protocols. Recommend approval of rescission request. Arizona Testing Manual for Air Pollutant Emissions (Revision F, March 1992) ADEQ included sections 1 and 7 of the Arizona Testing Manual in its May 16, 2014 supplement. A previous version of section 1 was approved into the SIP; section 7 would be new. Approval of section 1 would update the corresponding section in the Arizona Testing Manual in the existing SIP. Section 7 is Test Method A1, which is a test method that is relied upon cited in paragraph (E) of R18 - 2 - 71 5 , which is the part of the portion of R18 - 2 - 715 that is recommended for deferral herein. R ecommend approval of section 1 but defer action on section 7 consistent with the relevant portion of R18 - 2 - 715. A rizona Administrative Code, Title 18 (“Environmental Quality”), Chapter 2 (“Department of Environmental Quality – Air Pollution Control”) , Article 6 (“Emissions from Existing and New Nonpoint Sources”) R18 - 2 - 60 1 (“

General ”) Renumbered and updated to reflect the recodification of article 4 as article 6 . It contains an obsolete reference to AAC title 9, chapter 3, article 8, which is now codified at AAC title 18, chapter 2, article 9. Arizona correct ed this reference administratively and now the correct reference is found in th e version of the rule codified in the AAC. The current codification of the rule was included in ADEQ’s May 16, 2014 supplement . Recommend approval. R18 - 2 - 60 4 (“

Open areas, dry washes or riverbe ds ”) The rule was renumbered and a statutory reference was updated but no other changes were made relative to the existing SIP version. This particular rule continues to apply a “reasonable precautions” standard that is too vague to be practically enforce able. However, approval of the renumbered version of the rule reduces the SIP gap and the potential confusion with cross - references in other rules to this rule, as renumbered. Further, this rule is not relied upon to meet any CAA part D32

nonattainment area requirement. The current codification of the rule was included in ADEQ’s May 16, 2014 supplement. Recommend approval. R18 - 2 - 60 5 (“

Roadways and streets ”) The rule was renumbered but the text of the rule itself was not included. Based on a review of the current codification of the rule in the AAC, no other changes (other than renumbering) were made relativ e to the existing SIP version. This particular rule continues to apply a “reason able precautions” standard that is too vague to be practically enforceable. However, approval of the renumbered version of the rule reduces the SIP gap and the potential confusion with cross - references in other rules to this rule, as renumbered. Further, t his rule is not relied upon to meet any CAA part D nonattainment area requirement. The current codification of the rule was included in ADEQ’s May 16, 2014 supplement. Recommend approval . R18 - 2 - 60 6 (“

Material handling ”) The rule was renumbered but the tex t of the rule itself was not included. Based on a review of the current codification of the rule in the AAC, no other changes (other than renumbering) were made relative to the existing SIP version. This particular rule continues to apply a “reasonable pre cautions” standard that is too vague to be practically enforceable. However, approval of the renumbered version of the rule reduces the SIP gap and the potential confusion with cross - references in other rules to this rule, as renumbered. Further, this rule is not relied upon to meet any CAA part D nonattainment area requirement. The current codification of the rule was included in ADEQ’s May 16, 2014 supplement. Recommend approval . R18 - 2 - 60 7 (“

Storage piles ”) The rule was renumbered but the text of the rul e itself was not included. Based on a review of the current codification of the rule in the AAC, no other changes (other than renumbering) were made relative to the existing SIP version. This particular rule continues to apply a “reasonable precautions” st andard that is too vague to be practically enforceable. However, approval of the renumbered version of the rule reduces the SIP gap and the potential confusion with cross - references in other rules to this rule, as renumbered. Further, this rule is not reli ed upon to meet any CAA part D nonattainment area requirement. The current codification of the rule was included in ADEQ’s May 16, 2014 supplement. Recommend approval . R18 - 2 - 608 (“

Mineral Tailings ”) Am ended to include the language “or own or otherwise operate” in order to clarify that pollution control measures should continue after the construction of mineral tailings piles and during periods when tailings piles are inactive. This revision is not a SIP rela xation as its purpose is to clarify the rule’s continuing applicability. This particular rule continues to apply a “reasonable precautions” standard that is too vague to be practically enforceable. However, approval of the amended and renumbered version of the rule reduces the SIP gap and the potential confusion with cross - references in other rules to this rule, as renumbered. Further, this rule is not relied upon to meet any CAA part D nonattainment area requirement. Recommend approval. R18 - 2 - 6 1 4 (“

Evalua tion of nonpoint source emissions ”) Included in ADEQ’s May 16, 2014 supplement. Since approval of the corresponding SIP rule, R9 - 3 - 410, the rule has been renumbered ( to R 18 - 2 - 614 ) and revised to reflect other rule recodifications . Th e rule continues to ap ply a 40% opacity standard, which does not represent RACM/RACT.33

Nonetheless, approval of this rule would reduce the SIP gap , and this rule is not relied upon to meet any CAA part D nonattainment area requirement. Recommend approval. A rizona Administrative Code, Title 18 (“Environmental Quality”), Chapter 2 (“Department of Environmental Quality – Air Pollution Control”) , Article 7 (“Existing Stationary Source Performance Standards”) R18 - 2 - 701 (“

Definitions ”) T he following table provides an evaluation and recommendation for each defined term included in R18 - 2 - 701, as submitted on October 29, 2012. Paragraph # Defined Term: Evaluation Recommendation 1 Acid mist Revised to refer to the 40 CFR part 60, appendix A. Acceptable. Approve 2 Architectural coating Similar to existing SIP. Acceptable. Approve 3 Asphalt concrete plant Revised to include the specific processes

that comprise an “asphalt concrete plant” for the purposes of the rule as formerly set forth in the related substantive rule (R9 - 3 - 508, now R18 - 2 - 708). Acceptable. Approve

4 Black liquor Same as existing SIP. Acceptable. Approve 5 Boiler New to SIP. Mirrors definition of this term in a number of EPA regulations, e.g., 40 CFR 97.2 . Acceptable. Approve 6 Bottoming - cycle cogeneration unit New to SIP. Similar to definition of this term

in a number of EPA regulations, e.g., 40 CFR 97.402 . Acceptable. Approve 7 Calcine Same as existing definition but “lime plant” has been substituted for “roaster.” Acceptable. Approve 8 Coal Revised to update ASTM references. Similar to definition in 40 CFR 60.41. Acceptable. Approve 9 Coal - derived fuel New to SIP. Mirrors definition of this term in a number of EPA regulations, e.g., 40 CFR 97.402 . Acceptable. Approve 10 Coal - fired New to SIP. In artic le 7, the term is only used in rules, such as R18 - 2 - 733, R18 - 2 - 733.01 and R18 - 2 - 734, that have not been submitted as part of the SIP, nor would they be appropriate as part of the SIP, because they relate to HAPs, not NAAQS. Thus, no review of this term is necessary. Approve

11 Cogeneration unit New to SIP. Relied upon by other definitions in R18 - 2 - 701 that are used in connection with rules that regulate HAP emissions and Approve34 that have not been submitted for approval as part of the SIP. No review is necessary. 12 Combustion turbine New to SIP. Relied upon by other definitions in R18 - 2 - 701 that are used in connection with rules that regulate HAP emissions and that have not been submitted for approval as part of the SIP. No review is necessary. Approve

13 Commercial operation New to SIP. The only rule that uses this term

is R18 - 2 - 734 (“ State Standards of Performance for Mercury Emissions from Coal - Fired Electric Steam Generating Units ”), which has not been submitted as part of the SIP, nor is it appropriate for the SIP, because it relates to HAPs, not NAAQS. Thus, no review of this term is necessary. Approve

14 Concentrate Formerly, the term that was defined was “copper concentrate.” However, other than that, the definition is unchanged. Acceptable. Approve

15 Concentrate dryer Formerly, the term that was defined was “copper concentrate dryer.” However, other than that, the definition is unchanged. Acceptable. Approve

16 Concentrate roaster Formerly, the term that was defined was “copper concentrate roaster.” However, other than that, the definition is unchanged. Acceptable. Approve

17 Condensate stripper system Same as existing SIP. Acceptable. Approve 18 Control device Same as ex isting SIP. Acceptable. Approve 19 Converter Formerly, the term that was defined w as “copper converter.” However, other than that, the definition is unchanged. Acceptable. Approve

20 Electric generating plant New to SIP. In article 7, the term is only used

in rules, such as R18 - 2 - 733.01 and R18 - 2 - 734, that have not been submitted as part of the SIP, nor would they be appropriate as part of the SIP, because they relate to HAPs, not NAAQS. Thus, no review of this term is necessary. Approve

21 Electric ge nerating unit New to SIP. In article 7, the term is only used

in rules, such as R18 - 2 - 733 .01 and R18 - 2 - 734, that have not been submitted as part of the SIP, nor would they be appropriate as part of the SIP, because they relate to HAPs, Approve35 not NAAQS. Thus, no review of this term is necessary. 22 Existing electric generating plant New to SIP. The only rule that uses this term

is R18 - 2 - 733.01, which has not been submitted as part of the SIP, nor is it appropriate for the SIP, because it relates to HAPs, not NAAQS. Thus, no review of this term is necessary. Approve

23 Existing sourc e Same as existing SIP. Moved from R18 - 2 - 101 to R18 - 2 - 701. Acceptable. Approve 24 Facility Same as existing SIP. Acceptable. Approve 25 Fugitive dust Same as existing SIP. Acceptable. Approve 26 High sulfur oil This term had been included in certain prohibitory rules approved as part of the SIP (e.g., R9 - 3 - 503), but the definition has been moved to R18 - 2 - 701. Other than being relocated to the definitions rule, no other change has been made to this definition. Acc eptable. Approve

27 Incremental best available control technology New to SIP. The only rule that uses this term

is R18 - 2 - 734 (“ State Standards of Performance for Mercury Emissions from Coal - Fired Electric Steam Generating Units ”), which has not been sub mitted as part of the SIP, nor is it appropriate for the SIP, because it relates to HAPs, not NAAQS. Thus, no review of this term is necessary. Approve

28 Inlet mercury New to SIP. The only rule that uses this term is R18 - 2 - 734 (“ State Standards of Performance for Mercury Emissions from Coal - Fired Electric Steam Generating Units ”), which has not been submitted as part of the SIP, nor is it appropriate for the SIP, because it relates to HAPs, not NAAQS. Thus, no review of this term is necessary. Appr ove

29 Lime kiln Same as existing SIP. Acceptable. Approve 30 Low sulfur oil This term had been included in certain prohibitory rules approved as part of the SIP (e.g., R9 - 3 - 503), but the definition has been moved to R18 - 2 - 701. Other than being relocated to the definitions rule, no other change has been made to this definition. Acceptable. Approve

31 Matte Formerly, the term that was defined was “copper matte.” However, other than that, the definition is unchanged. Acceptable. Approve36

32 Mercury New to SIP. In article 7, t he term is only used in rules, such as R18 - 2 - 733, R18 - 2 - 733 . 01, and R18 - 2 - 734, that have not been submitted as part of the SIP, nor would they be appropriate as part of the SIP, because they relate to HAPs, not NAAQS. Thus, no re view of this term is necessary. Approve

33 Miscellaneous metal parts and products Same as existing SIP. Acceptable. Approve 34 Multiple - effect evaporator system Same as existing SIP. Acceptable. Approve 35 Nameplate capacity New to SIP. Relied on in the definition of the term “ electric generating unit.” See discussion of that term. Approve 36 Neutral su l fite semichemical pulping Similar to existing SIP. Acceptable. Approve 37 Petroleum liquids Revised to include updated ASTM references. Acceptable. Approve 38 Potential electric output capacity New to SIP. Mirrors definition of this term in

a number of EPA regulations, e.g., 40 CFR 97.402 . Acceptable. Approve 39 Process source Same as existing SIP. Acceptable. Approve 40 Process weight Same as existing SIP. Acceptable. Approve 41 Process weight rate Revised to refer to R18 - 2 - 702(E). The correct reference is to R18 - 2 - 702(F). R18 - 2 - 702 has been approved as part of the SIP. Approve but recommend that ADEQ revise R18 - 2 - 701(41) to refer to R18 - 2 - 702(F) instead of R18 - 2 - 702(E). 42 Recovery furnace Same as existing SIP. Acceptable. Approve 43 Reid vapor pressure Revised to include an updated ASTM reference. Acceptable. Approve 44 Reverbatory smelting furnace Formerly, the term that was defined was

“copper reverberatory smelting furnace.” However, other than that, the definition is unchanged. Acceptable. Approve

45 Rotary lime kiln Same as existing SIP. Acceptable. Approve 46 Slag More or less the same as existing SIP. Acceptable. Appro ve 47 Smelt dissolving tank Same as existing SIP. Acceptable. Approve 48 Smelter feed Same as existing SIP. Acceptable. Approve 49 Smelting Formerly, the term that was defined was “copper smelting.” However, other than Approve37 that, the definition is unchanged. Acceptable. 50 Smelting furnace Formerly, the term that was defined was “copper smelting furnace.” However, other than that, the definition is unchanged. Acceptable. Approve

51 Standard conditions Same as existing SIP. Acceptable. Approve 52 Supplementary control system Same as existing SIP. Acceptable. Approve 53 Topping - cycle cogeneration unit New to SIP. Similar to the definition of this

term in a number of EPA regulations, e.g., 40 CFR 97.402 . Acceptable. Approve 54 Total energy output New to SIP. Similar to the definition of this term in a number of EPA regulations, e.g., 40 CFR 97.402 . Acceptable. Approve 55 Vapor pressure Same as existing SIP. Acceptable. Approve R18 - 2 - 703 (“

Standards of Performance for Existing Fossil - Fuel Fired Steam Generators and General Fuel Burning Equipment ”) A mended to correct an unclear reference to “0.08 pounds” in (G)(2) to specify “0.08 pounds of sulfur dioxide” and amended to remove the reference to Appendix 10. In addition, minor technical and grammatical changes have been made to improve the rules’ clarity, conciseness, and understandability and to conform to the formatting style required by the Arizona Secretary of State. R18 - 2 - 703 relies on terms “low sulfur oil” and “high sulfur oil” that are no longer defined in the rule (as they were in R9 - 3 - 503 ) . However, t hese terms are now defined along with many other terms in R18 - 2 - 701 (“Definitions”) , which was submitted to EPA on October 29, 2012 and is evaluated herein . Recommend approval. R18 - 2 - 704 (“

Standards of Performance for Incinerators ”) Am ended to correct a misspelling in subsection (C) by changing the word “dearest” to “nearest.” Recommend approval . R18 - 2 - 70 5 (“Standards of Performance for Existing Portland Cement Plants ”) The rule was renumbered and submitted on July 15, 1998, and re - submitted as currently codified on May 16, 2014 . The current rule refers to R18 - 2 - 312 (Performance tests), which was i ncluded in the May 16, 2014 supplement to the July 15, 1998 SIP submittal. Based on a comparison of the current codification of the rule in the AAC with the existing SIP version of the rule, R18 - 2 - 705 has been amended to delete more stringent emissions lim itations for particulate matter and opacity for subject sources located in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties. Within those counties, the existing SIP rule includes separate emissions limitations and opacity limits for kilns and clinker co olers. Recommend deferral of this rule pending further review of the deletion of the tighter emission s and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110 (l) and 193. R18 - 2 - 70 6 (“Standards of Performance for Existing Nitric Acid Plants ”) The rule was renumbered and included in ADEQ’s May 16, 2014 supplement . A comparison of R18 - 2 - 706 with the existing SIP version of the rule shows that no substantive changes in the rule have38

been adopted. The existing SIP rule refers to a rule, R18 - 2 - 313 (Existing source emission monitoring), that was approved into the SIP on November 5, 2012 ( 77 FR 66405 ). Recommend approval . R18 - 2 - 70 7 (“Standards of Performance for Existing Sulfuric Acid Plants ”) The rule was renumbered and included in ADEQ’s May 16, 2014 supplement. A comparison of R18 - 2 - 707 with the existing SIP version of the rule shows that no substantive changes in the rule have been adopted. The existing SIP rule refers to a rul e, R18 - 2 - 313 (Existing source emission monitoring), that was approved into the SIP on November 5, 2012 ( 77 FR 66405 ). Recommend approval . R18 - 2 - 708 (“

Standards of Performance for Existing Asphalt Concrete Plants ”) A mended to remove the reference to Appen dix 10. Also, m inor technical and g rammatical changes have been made to improve the rules’ clarity, conciseness, and und erstandability and to conform to the formatting style required by the Arizona Secretary of State. Relative to the existing SIP rule R9 - 3 - 508, R18 - 2 - 708 no longer defines “asphalt concrete plant.” This term is now included in the list of definitions codified in R18 - 2 - 701 , which has been submitted for approval as part of the SIP and is evaluated herein . R18 - 2 - 708 does not include the more st ringent particulate matter emissions limits for subject sources located in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties that are required under existing SIP rule R9 - 3 - 508. Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110(l) and 193. R 9 - 3 - 5 0 9 (“

Standards of Performance for Existing Petroleum Refineries ”) (R escission) ADEQ requested rescission of R9 - 3 - 509 from the SIP through its May 16, 2014 supplement. In support of the rescission request, ADEQ provided a negative declaration stating that there are no petroleum refineries under ADEQ’s jurisdiction. This is sufficient justification for approval of the rescission request. Recommend approval of rescission request for R9 - 3 - 509. R18 - 2 - 711 (“

Standards of Performance for Existing Secondary Lead Smelters ”) A mended to remove the reference to Appendix 10. Also, m inor technical and g rammatical changes have been made to improve the rules’ clarity, conciseness, and und erstandability and to conform to the formatting style required by the Arizona Secretary of State. Relative to the existing SIP rule R9 - 3 - 511, R18 - 2 - 711 does not incl ude the more stringent particulate m atter emissions limits for subject sources located in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties that are required under existing SIP rule R9 - 3 - 511. Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110(l) and 193. R18 - 2 - 712 (“

Standards of Performance for Existing Secondary Brass and Bronze Ingot Production Plants”) A mended to remove the reference to Appendix 10. Also, m inor technical and grammatical changes have been made to improve the rul es’ clarity, conciseness, and understandability and to conform to the formatting style required by the Arizona Se cretary of State. Relative to the existing SIP rule R9 - 3 - 512, R18 - 2 - 712 does not include the more stringent particulate matter emissions limits for subject sources located in the Phoenix - Tucson Air Quality Control Region (i.e., Gila, Mari copa, Pima, Pinal, and Santa Cruz counties – see 45 FR 67345, October 10, 1980) that are required under existing SIP rule R9 - 3 - 51 2 . Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110(l) and 193 .39

R18 - 2 - 713 (“

Standards of Performance for Existing Iron and Steel Plants ”) Amended to remove the reference to Appendix 10. Also, m inor technical and grammatical changes have b een made to improve the rules’ clarity, conciseness, and understanda bility and to confo rm to the formatting style required by the Arizona Secretary of State. R18 - 2 - 713 requires sources to recalibrate certain monitoring devices in accordance with procedures in “Appendix 9 of the Chapter,” which was included in the May 14, 2014 supplement to t he July 28, 2011 SIP submittal . Relative to the existing SIP rule R9 - 3 - 513, R18 - 2 - 713 does not include the more stringent particulate matter emissions limits for subject sources located in Gila, Maricopa, Pima, Pinal, and Santa Cruz counties that are requi red under existing SIP rule R9 - 3 - 513. Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110(l) and 193. R18 - 2 - 7 14 (“

Standards of Performance for Existing Sewage Treatment Plants ”) The rule was renumbered and included in ADEQ’s May 16, 2014 supplement. A comparison of R18 - 2 - 714 with the existing SIP version of the rule (R9 - 3 - 514 ) shows that no substantive changes in the rule have been adopted. Recommend approval . R18 - 2 - 715 ( “

Standards of Performance for Existing Primary Copper Smelters; Site - specific Requirements ”) A mended to delete reference to the San Manuel smelter that is shutdown and for which the permit was terminated (in 2005) . New smelters would be subject to New Source Review and not this section. Also, the rule has been amended to remove the reference to Appendix 10 , and m inor technical and grammatical changes have be en made to improve the rules’ clarity, conciseness, and understandability and to conform to the formatting style required by the Arizona Secretary of State. EPA redesignated the San Manuel sulfur dioxide nonattainment area to attainment in part based on t he fact that the existing primary copper smelter had permanently ceased operation. See 73 FR 3396 (January 18, 2008). Thus, the deletion of emission limits for the San Manuel smelter from Paragraphs F and G of R18 - 2 - 715 are acceptable. R18 - 2 - 715, as submi tted, also includes paragraphs A through E . Paragraphs A through D establish particulate matter limits and an opacity standard that are similar to those established in many of Arizona performance standards in Article 7. Paragraph E addresses reference meth ods and includes a reference to “Method A1,” which constitutes section 7 of the Arizona Testing Manual , which was included in ADEQ’s May 16, 2014 supplement . A pproval of R18 - 2 - 715, as submitted, would supersede SIP rule 7 - 1 - 3.6 (for copper smelters outside of Gila, Maricopa, Pima, Pinal and Santa Cruz counties) and FIP rule 40 CFR 52.126(b) (for copper smelters within those counties). See EPA’s proposed disapproval of R9 - 3 - 515(B)(“Particulate emission limitations”) at 51 FR 25900 (July 17, 1986). Two primar y copper smelters remain in operations in Arizona and both are located in Gila County. Wi th respect to the remaining smelters, t he particulate matter limits in R18 - 2 - 715 are not as stringent as the corresponding limits in FIP rule 40 CFR 52.126(b), and thu s a rationale for approval of paragraphs A through E and the rescission of the FIP is not yet justified. Recommend deferral of paragraphs (A) through (E) pending further review and consider action on test method A1 ( in section 7 ) of the Arizona Testing Man ual when taking action on the paragraph E. R18 - 2 - 716 (“

Standard of Performance for Existing Coal Preparation Plants ”) A mended to remove the reference to Appendix 10. Also, m inor technical and gramm atical changes have been made to improve the rules’ clarity, conciseness, and understanda bility and to conform to the formatting style required by the Arizona Secretary of State.40

Relative to existing SIP rule R9 - 3 - 516, R18 - 2 - 716 would delete the 40% opacity standard contained in the earlier, approved versi on of the rule, but such deletion is acceptable because opacity standards not other wise specified in Article 7 rules are now set forth in R18 - 2 - 702 (“General Provisions”), which EPA approved on August 24, 2004 at 69 FR 51952. R18 - 2 - 716 references R18 - 2 - 604 through R18 - 2 - 607 for requirements related to fugitive emissions . R18 - 2 - 604 through R18 - 2 - 607 were submitted to EPA in July 1998 and are evaluated herein . Lastly, r elative to the existing SIP rule R9 - 3 - 516, R18 - 2 - 716 does not include the more stringent pa rticulate matter emissions limits for subject sources located in Gila, Maricopa, Pima, Pinal, and Santa Cruz counties that are required under existing SIP rule R9 - 3 - 516. Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110(l) and 193 . R18 - 2 - 717 (“

Standards of Performance for Steel Plants: Existing Electric Arc Furnaces (EAF) ”) A mended to remove the reference to Appendix 10. Also, m i nor technical and grammatical changes have been made to improve the rules’ clarity, conciseness, and understandability and to conform to the formatting styl e required by the Arizona Secretary of Stat e. Relative to existing SIP rule R9 - 3 - 51 7 , R18 - 2 - 71 7 does not include the more stringent particulate matter emissions limits for subject sources located in Gila, Maricopa, Pima, Pinal, and Santa Cruz counties that are required under existing SIP rule R9 - 3 - 517. Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110(l) and 193 . R 9 - 3 - 5 18 (“

Standards of Performance for Existing Kraft Pulp Mills ”) (R escission) Repealed because t here are no longer any operating Kraft pulp mills in Arizona. Submittal of the repealed rule is interpreted as a request for rescission of the correspondi ng existing SIP rule, R9 - 3 - 518. Such deletion without replacement would be acceptable given that no such pulp mills operate within the state and any new kraft pulp mills that locate to Arizona would be required to apply for a permit under New Source Review or PSD rules and may be subject to NSPS as well. Recommend rescission of R9 - 3 - 518 from the SIP . R18 - 2 - 719 (“

Standards of Performance for Existing Stationary Rotating Machinery ”) A mended to remove the reference to Appendix 10. Also, m inor technical and g rammatical changes h ave been made to improve the rules’ clarity, conciseness, and understandability and to conform to the formatting style required by the Arizona Secretary of State. R18 - 2 - 719 relies on terms “low sulfur oil” and “high sulfur oil” that are no longer defined i n the rule (as they were in R9 - 3 - 519 ) . These terms are now defined along with many other terms in R18 - 2 - 701 (“Definitions”), which was submitted for approval as part of the SIP and is evaluated herein . Recommend approval. R18 - 2 - 720 (“

Standards of Performance for Existing Lime Manufacturing Plants ”) A mended to remove the reference to Appendix 10. Also, m inor technical and g rammatical changes have been made to improve the rules’ clarity, conciseness, and und erstandability and to conform to the formatting style required by the Arizona Secretary of State. R18 - 2 - 720 references R18 - 2 - 604 through R18 - 2 - 607 for requirements related to fugitive emissions . R18 - 2 - 604 through R18 - 2 - 607 were submitted to EPA in July 199 8 and are evaluated herein. Also, r elative to existing SIP rule R9 - 3 - 5 20 , R18 - 2 - 7 20 does not include the more stringent particulate matter emissions limits for subject sources located in Gila, Maricopa, Pima, Pinal, and Santa Cruz counties that are require d under existing SIP rule R9 - 3 - 520. However, ADEQ indicates that there are only two existing lime manufacturing facilities subject41

to R18 - 2 - 720, 3 neither of which is located in one of the counties (Gila, Maricopa, Pima, Pinal, and Santa Cruz counties) subj ect to the more stringent limits in existing SIP rule R9 - 3 - 520. Any new lime manufacturing facility in those counties would be subject to NSPS or MACT and thus would be subject to more stringent requirements than in R9 - 3 - 520. Thus, approval of R18 - 2 - 720 wo uld not result in interfere with attainment and maintenance of any NAAQS under CAA section 110(l) nor would it require equivalent emissions reductions under CAA section 193. Recommend approval. R18 - 2 - 721 (“

Standards of Performance for Existing Nonferrous Metals Industry Sources ”) A mended to remove the reference to Appendix 10. Also, m inor technical and g rammatical changes have been made to improve the rules’ clarity, conciseness, and understandability and to c onform to the formatting style required by the Arizona Secretary of State. Relative to existing SIP rule R9 - 3 - 5 21 , R18 - 2 - 7 21 would delete the 40% opacity standard contained in the earlier, approved version of the rule, but such deletion is acceptable because opacity standards not other wise specified in Article 7 rules are now set forth in R18 - 2 - 702 (“General Provisions”), which EPA approved on August 24, 2004 at 69 FR 51952. Also, relative to the existing SIP rule R9 - 3 - 521, R18 - 2 - 721 does not include the more stringent particulate matter em issions limits for subject sources located in Gila, Maricopa, Pima, Pinal, and Santa Cruz counties that are required under existing SIP rule R9 - 3 - 521. Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opaci ty limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110(l) and 193 . R18 - 2 - 722 (“

Standards of Performance for Existing Gravel or Crushed Stone Processing Plants ”) A mended to remove the reference to Appendix 10. Also, m inor technical and grammatical changes have been made to improve the rules ’ clarity, conciseness, and understandability and to conform to the formatting style required by the Arizona Secretary of State. Relative to exis ting SIP rule R9 - 3 - 5 22 , R18 - 2 - 7 22 would delete the 40% opacity standard contained in the earlier, approved version of the rule, but such deletion is acceptable because opacity standards not other wise specified in Article 7 rules are now set forth in R18 - 2 - 702 (“General Provisions”), which EPA approved on August 24, 2004 at 69 FR 51952. R18 - 2 - 722 references R18 - 2 - 604 through R18 - 2 - 607 for requirements related to fu gitive dust . R18 - 2 - 604 through R18 - 2 - 607 were submitted to EPA in July 1998 and are evaluated h erein. Lastly, relative to the existing SIP rule R9 - 3 - 522, R18 - 2 - 722 does not include the more stringent particulate matter emissions limits for subject sources located in Gila, Maricopa, Pima, Pinal, and Santa Cruz counties that are required under existin g SIP rule R9 - 3 - 522. Recommend deferral of this rule pending further review of the deletion of the tighter emissions and opacity limits for subject sources in Gila, Maricopa, Pima, Pinal, or Santa Cruz counties to determine compliance with CAA sections 110 (l) and 193 . R 1 8 - 2 - 72 3 (“

Standards of Performance for Existing Concrete Batch Plants”) This rule was included in ADEQ’s May 16, 2014 supplement, and o ther than renumbering, there are no substantive changes evident between R18 - 2 - 723 and the existing SIP rule (R9 - 3 - 523). The submitted rule cites R18 - 2 - 604 through R18 - 2 - 607, which were also submitted to EPA and evaluated herein. Recommend approval. R18 - 2 - 724 ( “

Standards of Performance for Fossil - fuel fired Industrial and Commercial Eq uipment ”) A mended to remove the reference to Appendix 10. Also, m inor technical and grammatical changes have been made to improve the rule s’ clarity, conciseness, and understandability and to

3 See email from Diane Arnst, ADEQ, to Jerry Wamsley, EPA, dated September 28, 2011.42

conform to the formatting style required by the Arizona Secretar y of State . R18 - 2 - 724 relies on terms “low sulfur oil” and “high sulfur oil” that are no longer defined in the rule (as they were in R9 - 3 - 524 ) . These terms are now defined along with many other terms in R18 - 2 - 701 (“Definitions”), which has been submitted t o EPA for approval as part of the SIP and is evaluated herein . Recommend approval. R18 - 2 - 72 6 (“

Standards of Performance for Sandblasting Operations”) Other than renumbering, no substantive changes are evident between the 1998 submitted rule , as resubmit ted in ADEQ’s May 16, 2014 supplement, and the existing SIP rule (R9 - 3 - 526). Recommend approval. R18 - 2 - 7 28 (“Standards of Performance for Existing Ammonium Sulfide Manufacturing Plants ”) The rule was renumbered and included in ADEQ’s May 16, 2014 suppleme nt. A comparison of R18 - 2 - 728 with the existing SIP version of the rule shows that no substantive changes in the rule have been adopted. Recommend approval. R18 - 2 - 729 (“

Standards of Performance for Cotton Gins ”) R18 - 2 - 729 references R18 - 2 - 604 through R18 - 2 - 607 for requirements related to fugitive emissions . R18 - 2 - 604 through R18 - 2 - 607 were submitted to EPA in July 1998 , and as currently codified in ADEQ’s May 16, 2014 supplement, and are evaluated herein. Recommend approval . R18 - 2 - 730 (“

Standards of Performance for Unclassified Sources ”) A mended to remove the reference to Appendix 10. Also, m inor technical and grammatical changes have been mad e to improve the rules’ clarity, conciseness, and understandability and to conform to the formatting style r equired by the Arizona Secretary of State. Recommend approval. R18 - 2 - 732 (“

Standards of Performance for Existing Hospital/Medical/Infectious Waste Incinerators ”) A mended to delete the reference to the old ADEQ address. Hospital incinerators were formerly regulated under R9 - 3 - 504 (re - numbered R18 - 2 - 704), but are now regulated separately under R18 - 2 - 732 . R18 - 2 - 732 refers to two tables that were also included in the submittal package at the end of AAC, title 18, chapter 2, article 7. Recommend approval. Appendix 9 (“Monitoring Requirements”) The only rule that relies on appendix 9 is R18 - 2 - 713 (“Standards of Performance for Existing Iron and Steel Plants”). Although R18 - 2 - 713 was previously approved into the SIP as R9 - 3 - 513 and R9 - 3 - 513 also relies on “a ppendix 9,” EPA has yet to approve appendix 9 as part of the SIP, and thus appendix 9, which was included in ADEQ’s May 16, 2014 supplement, would be new to the SIP. R18 - 2 - 713 is recommended herein for deferral based on CAA section 110(l) considerations an d thus deferral of appendix 9 is also recommended pending further consideration of R18 - 2 - 713. Appendix 11 (“

Allowable Particulate Emissions Computations ”) (Rescission) R epealed as unnecessary because the actual values must be calculated using the equat ion included in the rules. Approval of the repeal of appendix 11 would provide EPA with the basis to delete existing SIP appendix 11 without replacement from the Arizona SIP. Such deletion without replacement would be acceptable given that appendix 11 cont ains a plot of emissions limits based on formulas contained in the substantive rules that was intended for reference purposes only but not as defining the SIP limit. Rather, the formula provides the SIP limit. Thus, appendix 11 is not necessary to be retai ned in the SIP. Recommend approval of re scission request .43

SUMMARY OF RECOMMENDATIONS With the following exceptions, t he new or amended statutory provisions and rules and rule rescissions evaluated herein meet all of the applicable CAA requirements and should be approved. The following paragraphs contain recommendations for clarification or further revisions of the rules for which approval is recommended, and a list of rules that are recommended for deferr al pending further documentation . Recommendations for Changes to the Rules :

 ADEQ should clarif

y that t he definition of “excess emissions” in R18 - 2 - 101(50) does not preclude use of credible evidence in establishing whether an emissions standard has been viol ated. See 40 CFR 51.212. Clarification could be made in the form of written assurance to EPA or through changes in the definition itself.

 ADEQ should revise the definition in R18 - 2 - 101(51) (“Federal applicable requirement”) to match the corresponding definition in part 70.

 Und er 40 CFR 50.4, the annual and 24 - hour standard remain applicable until one year after the effective date; and thus, R18 - 2 - 202 revokes the annual and 24 - hour primary SO 2 standards one year too soon. ADEQ should conform the rule to revocation schedule set forth in 40 CFR 50 .4 and re - submit R18 - 2 - 202 as a revision to the Arizona SIP.

 R1 8 - 2 - 210 (“ Attainment, Nonattainment, and Unclassifiable Area Designations ”). This rule incorporates by reference the area designations as of July 1, 2011, but as such, does n ot include a number of new designations and redesignations in Arizona. ADEQ should update R18 - 2 - 210 to reflect current designations in the State of Arizona and re - submit R18 - 2 - 210 as a revision to the Arizona SIP .  ADEQ should revise R18 - 2 - 701(41) to refe r to R18 - 2 - 702(F) instead of R18 - 2 - 702(E) , and re submit R18 - 2 - 701 as a revision to the Arizona SIP . Defer Action Depending Additional Analysis : R18 - 2 - 705 R18 - 2 - 708 R18 - 2 - 711 R18 - 2 - 712 R18 - 2 - 713 R18 - 2 - 715 , P aragraphs (A) through (E) R18 - 2 - 716 R18 - 2 - 717 R18 - 2 - 721 R18 - 2 - 722 Appendix 9 Arizona Testing Manual for Air Pollutant Emissions, Revision F, March 1992, Section 7 .